Many say a climate of hostility towards Muslims has been growing since the new citizenship law came into effect.
It gives priority to non-Muslim immigrants from neighbouring countries.
Al Jazeera’s Bernard Smith has more from the Bangladeshi side of the border with India.
Climate is the long-term average of weather, typically averaged over a period of 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.
India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by land area, and the most populous democracy in the world. New Delhi is the capital.
It has an exceptionally diverse population, with Hindus, Muslims, Christians, Sikhs, Buddhists, Jains and other religions speaking over 21 recognised languages.