The people from Bihar, better known as Biharis, constitute the bulk of the immigrants of Calcutta from the neighbouring states. They are found everywhere in Calcutta. They come to Calcutta primarily in search of jobs. They are mostly found in works, which involve physical strength, stamina and hardwork.

Majority of them, for instance, work in factories, mines and industries where sedulous work is required. Many of them work as porters in the Howrah and Sealdah stations. Again a large chunk of the Biharis drive cabs and pull rickshaws, or work in shops, either as shopkeepers or their helpers. They are also reliable as security-guards and gatekeepers. They possess robust statures and are bold enough for doing all hardy jobs which involve risks. They are also known for their tenacity. Again, several Bihari students come to Calcutta for better educational facilities. They pursue courses in colleges, universities, medical colleges or hotel management institutes. Later, they get employed in the city and also get domiciled. They do not dwell in any colony or exclusive belt but are sporadically found everywhere in the city. The very low income groups who live a hands-to-mouth existence, are also found in South Calcutta and the suburbs, though to a lesser extent.

Some schools and colleges have been built in Calcutta exclusively for the Biharis. These hard-working people are fun-loving and get contented easily.