Why is the population density of West Bengal high?

In old old day geography books it was written that indian population is distributed according to share of rain fall because of heavy rainfall west bengal had a higher density than bihar in 1971 . Actually in 1971 kerala was most density populated state in india following by west bengal . Now bihar is pride honour of that title . read more

West Bengal’s population density and Bangladesh’s (East Bengal) population density is almost same. Why Bangladesh seems over crowded is because of Dhaka and Chittagong, two biggest and most densely populated cities of Bangladesh. read more