CHANGING PATTERN OF INTER-STATES IN-MIGRATION TO WEST BENGAL: CENSUS 2001-2011

This paper attempts to understand the pattern of the change of in-migration to West Bengal from different states of India. Inter-state migration flow to West Bengal is an old and essential phenomenon from the times of pre-independence periods. The total population of West Bengal in 2001 was about 80 million, and in 2011 the population increased to 91million persons. During the same period, it is observed that total inmigrants declined slightly from 2.45 million persons in 2001 to 2.38 million persons. The Study's objective is to examine the pattern of inter-state in-migration to West Bengal during 2001-2011 censuses and analyze the reasons and duration of stay of in-migration by the age-sex groups. The primary source of the Study is the census of India 2001 and 2011 (D2 & D5 Tables) based on place of last residence (POLR). The analysis includes computation of rate, ratio, and the result are shown by graphs and maps using ArchMap10.3.1 software. Significant findings include changing the pattern of inter-state in-migration by POLR between North 24 Parganas and Kolkata, indicating a flow decline pattern. The top ten major states in India send enormous numbers of migrants (94.33% in 2001 and 94.30% in 2011), the working-age groups have quite diminished as inmigrants in the past ten years. Bihar and Jharkhand sent the most prominent migrants to West Bengal. The Study feels that to attract the migrants again back, West Bengal would require a new regional developmental strategy to regain its old status as one important destination for in-migrants.


INTRODUCTION
Migration is a third important component of demography after fertility and mortality. It is a historical and dynamic process in which people are mobile from place to place or one place to another place with some motives in respect of temporary or permanents, as well as for the short and long-distance. According to Gosal (1961), migration is referred to as the continuously changing spacecontent and space relationship of an area rather than shifting of people from to place of residence to another, while Lee (1969) described the mobility of people without any restriction as 'a permanent or semi-permanent change of residence. Bhende and Kanitkar (2000) also stated that migration refers to changing the geographical or spatial unit between two places, from origin to destination. Migration occurs due to push-pull factors and has both positive and negative impacts at the place of origin and destination. Therefore, an area or population can significantly benefit from migration as it can boost development. But all migrations occur for different reasons, other than for economic it may be due to political or social factors.
In view of the importance of migration, this study analyses the changing pattern of In-migration to West Bengal from the different States of India based on census data of 2001 and 2011. In West Bengal, there are certain in-migration areas where people are likely to choose better opportunities for jobs, life safety, and cultural attraction. The Millennium Development Goals (MDGs, 2000(MDGs, -2015 added that internal migration is responsible for eradicating poverty and contributing to economic growth in developing countries. It is essential to analyze how the Inmigration trends are changing over the two consecutive censuses of India from 2001 to 2011 in West Bengal. The Study will reveal fundamental reasons and patterns (such as reasons, a favorite destination within the state, areas/places, etc.) of inmigration to the state and its regions (districts).
According to the census reports, the West Bengal population has been growing steadily since 1901, except for a minor decline in 1921, from about 17 million to 91 million by 2011 (Table 1). The decadal growth pattern has indicated that the population had the highest jump in the 1941 (22.9%) from the previous census (8.14%). In 1951 the state experienced a lower growth rate of 13.2 percent, but in the subsequent year (1961), it felt the highest rate with 32.8 percent, and the annual rate remained below 2 percent in 2001. The state has experienced a fluctuating growth rate over the years, and in 2011, the rate was a much lower annual growth rate of 1.4 percent.

Literature Review
The literature review gives information about the research gap and the research background of the previous related work in the state and in-migration. There cannot be any universal theory of population and migration; it depends on the production system, so it will not be correct to call it a theory. For the review of in-migration-related literature, there has been some important work done by earlier scholars. Bose (1967) discussed the pattern of internal migration in India in terms of origin, streams, and distance, and direction based on the 1961 census, where the author identified that two types of migration are dominated within India as a female, they migrate for marriage purpose and male migrate for economical purpose. Premi (1980), working on secondary data of census 1971 on aspects of female migration in India, identified that there were more women migrants than men over the whole of India, which accounts for more than 70 percent of the total migrants inside the country. The main reasons were due to 'marriage' and 'association, particularly from rural-to-rural areas. Singh (1984) described the relationship between the rural to urban migration in India concerning the distance travel or covered by the migrants with the short and long-distance pattern concerning the sex-selective, where authors give more importance to the opportunity-based destination. Singh (1986) had compared the rural and urban migration concerning the migration selectivity, based on three states of India, namely Kerala, West Bengal, and Bihar. The author explained how demographic, economic, and regional disparities differ with the migration selectivity pattern of the three states of India studied. Bhagat (2005) stated that migration could lead to overpopulation or depopulate an area based on economic development and other related development like urbanization and social change, which is mainly responsible for the push and pull factor of an area. Lusome And Bhagat (2006) explained the trends and patterns of internal migration in India based on the 1971-2001 census. They identified that internal migration is an essential factor in influencing the development of socioeconomic factors in developing countries. Bhagat (2009) also worked on the census, and NSSO data in which he described that the states with higher per capita income and enormous dominance of non-agricultural sector did not show all-time high level of in-migration but also out-migration and identified the socially disadvantaged groups like SC/ST do not show higher mobility compared to other population categories. Sarkar (2017) described with the help of the 1991-2001 census recent changing patterns of migration and spatial patterns of urbanization in West Bengal, as with increase and decrease of tempo urbanization the pattern of in and outmigration are becoming changing in West Bengal, he finds the patterns of inmigration in West Bengal are increased from 1991-2001 census. Banu (2016) describes the trends and patterns of internal migration in West Bengal concerning census 1991-2001, where he shows that the changing trends of in-migration in West Bengal are primary reasons for the transformation of socio-economic factors in West Bengal and gender difference also an essential migratory distance have been considered under his discussion.

The need for the Study
The inter-state migration flow into West Bengal is an essential phenomenon from old times to present-day periods. There are some fundamental reasons behind studying issues related to in-migration in West Bengal, considering the last two censuses. West Bengal is the 4th largest state in population and the 2nd most densely populated state in India Census of India, various Reports (2011). The state has the 3rd most mobile population when considering the last residence. Over the years, the proportion of migrants in West Bengal has increased from 27 percent in the 1991 census to 30 percent in 2001. It would be interesting from all aspects to understand the different streams and reasons of in-migration in the state, and analysis attempted to examine the changes over time from the perspectives of the inter-state flow of migrants, streams of migration, reasons, and Duration for migration.

The objective of the Study
The Study's main objective is to analyze the dynamics of in-migration in West Bengal over the 2001 and 2011 periods, and the other specific objectives are: 1) To examine the pattern of inter-state in-migration to West Bengal during 2001-2011; 2) To study the streams of in-migration observed in West Bengal and its regions/districts during the same period; and 3) To analyze the reasons and duration of stay of in-migrants to West Bengal.

DATA AND METHODOLOGY
The Study is based on secondary data, the Census of India, Migration Reports, (2001). According to the census, the migrants are classified as a place of birth and place of residence. The systematic collection of migration data by the Registrar-General of India (RGI), under the Ministry of Home Affairs, GoI, has been available since the first regular census in 1872, which is based on place of birth (POB) and the place of the last residence (POLR) collected since 1971. In the 1981 census, the migration data collected included the reasons for migration. According to the study's objectives, the analysis is based on migrants' reported place of last residence (POLR). The D2 table contains data related to the trend of inter-states in-migration to West Bengal and streams of in-migration Census of India, various Reports (2001-11). On the other hand, the D5 Tables examine the trends for reasons and the Duration of in-migration to West Bengal Census of India, various Reports (2001-11).
The complete analysis is done using simple statistical techniques to derive ratios, rates (percentage), and the results are presented through graphs and maps using ArcMap10.3.1 software.
• Percentage of in-migration = number of individuals (or in a district) inmigration by the total in-migration of that specific field or district*100.

INTER-STATE IN-MIGRATION BY PLACE OF LAST RESIDENCE
Inter-state migration refers to the person with the last residence in India but beyond the state of enumeration (Bhagat, 2006). The total population of West Bengal in 2001 was about 80 million (males 41,465,985 and female 38,710,212) and in 2011 the population increased to 91 million (male 46,809,027 and female 44,467,088) respectively. During the same periods, it is observed that total inmigrants declined slightly from 2,457,162 persons (males 1,330,989 and female 1,126,173) in 2001 to 2,381,045 persons (males 1,092,592 and female 1,288,453). Table 2 and Figure 1 present the shares and change over two censuses of inmigration by their destinations across West Bengal from different states of India. The censuses of 2001 and 2011 showed that the highest proportion of in-migrants to West Bengal have been in two districts, namely Kolkata and Bhardhaman districts, and the least in Dakshin Dinajpur district. In 2001, the distribution of districts by their share of in-migrants was Kolkata (19.14%), followed by Barddhaman (15.73%). The share for other districts stated that Darjeeling (4.03), Haora (9.12), Hugli (8.41), Jalpaiguri (5.66), Murshidabad (4.85), Medinipur (13.43), and Purulia (4.19). All these nine districts together received 84.26 percent of in-migrants in 2001 and the same districts in the subsequent census of 2011 showing a pretty changing trend of in-migration.
In the case of the 2011 census, the nine districts of Barddhaman (15.8%), Darjeeling (4.8%), Haora (8.5%), Hugli (7.99%), Jalpaiguri (5.98%), Kolkata (16.5%), Murshidabad (1.48%), Medinipur (4.3%), and Purulia (5.27%), together represent 70.7 percent of in-migrants. This indicates a decreasing trend of inmigrants to West Bengal by 13.5 percentage points between two consecutive censuses. The districts like Bankura, Bardhhaman, Birbhum, Darjeeling, Jalpaiguri, Koch Bihar, Maldah, Nadia, 24 PGS(N), Purulia, 24 PGS(S), and Uttar Dinajpur are recognized as migrant-gaining districts from 2001 to 2011 censuses. In 2011, there were ten districts with less than 5 percent of in-migrants in their districts. On the other hand, Haora, Hugli, Kolkata, Murshidabad, Medinipur are recognized as migrant-losing districts but affect changing trends of in-migration vigorously. Such a pattern reflects the extent and decreasing trend of in-migration to West Bengal between two censuses of 2001-2011.  As indicated in Figure 1, despite the decline in the percentage of in-migrants between the two censuses, in the state, it is seen that the share or proportion for each district has not changed visibly, except in two districts. The only exception or drastic change was reported from 24 Pargana North (share increase by 11 percentage points) and Medinipur district (decline by nine percentage points).

THE IN-MIGRANT SENDING STATES OF INDIA TO WEST BENGAL IN 2001 AND 2011
There is an inverse inter-relationship between distance and migration. Migrants moving to a given distance or place is directly proportional to the number of opportunities nearby and inversely proportional to the number of intervening options Stouffer (1940). As indicated by Table 3 and Figure 1, the nearest states are contributing more in sending migrants to West Bengal. The fact is that the number of present opportunities and nearness is directly related to the number of migrants at the place of the last residence to the destination Singh (1984). Ten states sent migrants to West Bengal in 2001, accounting for 94 percent of total in-migrants. In 2011, these ten states remained the main contributors of in-migrants, but their share declined marginally to 94.30 percent. In the case of migration by sex to West Bengal, there has been not much variation between the two censuses. There has been a very marginal decline (-0.42%) but a slight increase seen among females by 0.38 percent.
The states-wise analysis shows that over the years, more migrants have come to West Bengal mainly from three states, namely, Bihar, Jharkhand, and Uttar Pradesh (UP). These three states account for over 60 percent of the in-migrants in West Bengal for both Censuses. In 2001, Bihar contributed nearly half of all inmigrants (45.73%), followed by Jharkhand (17.95%) and Uttar Pradesh (12.14%). Then trends and patterns remain unchanged in the 2011 Census, but each state's share has changed. In 2011, two of these leading states, namely Bihar and Jharkhand, saw an increase. For instance, Bihar's share increased to 46.25 percent, and Jharkhand to 19.29 percent. But UP's share has declined a little (10.03%).

PATTERN OF IN-MIGRANTS BY STREAMS OF MIGRATION BY SEX IN WEST BENGAL, 2001 AND 2011
The data presented in Table 4  The Rural-Urban in-migration has decreased for both the total migrants (-4.16%) and male migrants (-8.66%) during 2001 and 2011. But the contrary scenario is seen in the case of female migrants, an increasing trend (+8.66%). The movement of migrants from Rural to Urban areas can be interpreted as due to job opportunities between two separate places, and for this motive, migrants are forced to migrate from rural to urban areas (Mukherjee, 2001).
In the case of Urban-Rural in-migration to West Bengal, both total migrants (+0.21%) and female migrants (+6.08%) indicate an increasing trend, whereas the male migrants show a negative trend (-6.08%) during 2001-2011. Overall, the pattern seen in the case of streams of in-migration to West Bengal can be concluded as the dominancy of female in-migration in all streams of migration. But in the case of men, in-migration has been decreasing from 2001 to 2011 in all types of streams of migration or opposites to that of female in-migration from different states of India to West Bengal.

DURATION OF RESIDENCE AND REASONS FOR IN-MIGRATION BY SEX DURING 2001-2011
There has been a contradictory argument why people move from one region to another, leaving their present residence to find a new residence. The reasons for the migration are mainly between two main concepts known as the "push" and "pull" factors Lee (1969), in which the push factors relate to causes and pull aspects relate to the results/outcomes. The data on reasons for migration are helpful to understand the motivational factors associated with the mobility of the people (Bhagat, 2006). Data on reasons for migration based on the last residence has been collected by the Census (RGI) since 1981. Table 5 presents the results of the changing scenario of Duration and reasons for in-migration to West Bengal between two censuses, 2001 and 2011. The all Duration (lifetime) of migration indicates that marriage in-migration is mostly the dominant one than other reasons. The changing trend observed for reasons of inmigration between 2001 and 2011 censuses have been due to work/employment (-1.95%), moved with household (-2.6%), business (-0.12%), and education (-0.2%). But the increase is seen due to marriage (+0.12%), moved after birth (+2.60%), and others (+2.22%).
As indicated, reasons such as marriage, moved after birth, and other categories represent an increasing in-migration trend. The above reasons explained essential issues related to the Duration and reasons of in-migration to West Bengal from other states in India.  Table 6 presents the changes observed in the sex-wise Duration and reasons for in-migration to West Bengal between two consecutive censuses 2001-2011. In which the causes and duration of the last residence are separately analyzed for Males and Females. The All Duration (lifetime) the main reasons reported for inmigration (both showing a positive and negative increase over the two censuses) are education (male -10.13% and for female +10.13%), followed by business (male -4.09% and female +4.09%), and moved with household (male +3.83% and female -3.83%). The analysis of sex-wise Duration and reasons for in-migration to West Bengal from different states of India reflects positive change for men in most issues but the females a decline (negative) in the case of marriage purposes between the two consecutives Census of India, Migration Reports, (2001-11).

DURATION OF RESIDENCE OF IN-MIGRATION BY AGE AND SEX, WEST BENGAL, 2001 AND 2011
Internal migration is recognized as one of the important factors that influenced the socio-economic development of an area, basically identified with the developing countries of the world (Bhagat, 2006). According to the Indian Constitution, Article 19(1)(d) envisages that every person can move freely without any restriction within the territory of India (Laxmikanth, 2017). Table 7 and Table 8 present the duration of residence of in-migrants in West Bengal by age-groups and sex-wise for both 2001 and 2011 censuses. Table 5 is presented changing scenario of the Duration of in-migration concerning age groups. The All duration (lifetime) period the percentages vary widely across age groups. For instance, while most age groups indicated an increase or positive change, the 201 middle age groups declined. Those age groups with growth or positive change are the children age 0-14 (+2.47%) and 60+ (+0.05%), where the age groups of education gain students and the working-class migrants are showing the consecutive decreasing percent's of in-migration in west Bengal 15-29 (-0.89%) and 30-59 (-1.63%). The results portray that the age groups most dominant for decreasing or negative trends of in-migrants are the active working classes. This could be because these age groups adhered to the concepts of development. On the other hand, lack of decentralized development within the state could be the reason for migrants to shift to other states leading to out-migration from West Bengal. The dependent younger population are positively moving with their parents as with the students who move for education, both leading to increasing out-migration, but a case of return migration among the older population for the increasing trend. Table 8 presents other dimensions related to the Duration of in-migrants in West Bengal by age and sex of migrants for 2001 and 2011. Interestingly, both age and sex show a different pattern of change in in-migration from other states. The All duration (lifetime), the age-groups and sexes showing increase positively are 0-14 (male +3.74% female +1.87%), 15-29 (male +1.24%), and 60+ (male +0.14% female +0.01%), where the age-group of 15-29 (female -1.80%) and 30-59 (male -5.11% female -0.09%) are consecutively showing the decreasing percentage of in-migrants to West Bengal.

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From the above analysis, it is indicated that in West Bengal, based on the Duration of migration of both age-sex groups, a decreasing trend coupled with diversion dominated mainly by the working-class is clearly indicated, and a visible pattern of return-migration as depicted increasingly by older age groups of both sexes. The scenario suggests declining in-migration to West Bengal, plausibly due to better alternatives in other states of India.

CONCLUSIONS, FINDINGS, AND POLICY IMPLICATIONS
West Bengal has some actual and adequate policies and laws from the postindependence period for in-migrants and immigrants, as given, which are included below.
• The West Bengal Land Development and Planning Act (1948): the purpose of these laws meant for immigrants, and in-migrants from different areas can settle in West Bengal with the establishment of the town, model village, agricultural colonies, and fisheries, etc. • According to the Nehru-Liaquat pact (1950), the Indian government realized that those migrants were entering from the former East Bengal (Bangladesh) after the independence allowed them to stay in West Bengal (Kolkata) as Refugees. • The West Bengal Administration of the Evacuee Property Act (1951): the government's attempt to safeguard the interests of the Muslims in West Bengal. • The Thika Tenancy Act (1981): introduced for the poor-income urban settled migrants -these are related to the landlord and migrants who settled temporarily for a permanent way in legal bustees and illegal squatter colonies. The study focuses on the changing characteristics and trends of in-migration from different states of India to West Bengal. One important finding relates districts like Kolkata are showing decreasing in-migration and 24 pgs. (N) are leading the increasing percentage of in-migration over the two consecutive Census of India, Migration Reports, (2001-11), these mainly happen due to the development pattern of these two areas or districts, where the north 24 Parganas are becoming developed increasingly in comparison to the Kolkata and north 24 Parganas also play an essential role sub-urban area of Kolkata as a residential area. While the male working-age population is becoming increasingly decreasing, the female migrants indicate the increase or positive change but within limited streams such as rural to rural migration. The females have moved, as traditionally, for marriage. As the development of West Bengal has been very centralized and localized traditionally in and around Calcutta city, in due course, it means that if the Calcutta is unable to fulfill the demands of the people, then the massive migrants would shift their destinations for jobs, safe living, and better facilities. The analysis indicates that in the last two decades, such as the reality and main problem faced by the people of West Bengal. So, to woo the migrants back, West Bengal would require a new development strategy to regain its old status and attract new migrants into the state.