Regional film industries

India is a large country where many languages are spoken. According to the 1991 Census of India there are about 10,400 'raw mother tongues' in India. If closely related and mutually comprehensible dialects are grouped, the number can be reduced to 1576 ‘rationalised’ mother tongues, or with even more consolidation, 114 main languages. These 114 languages are the ones surveyed in the Indian census.[6] Indian film producers have made films in thirty of the largest languages. However, only the very largest language groups support major regional industries. These are: Hindi, Tamil, Telugu, Bengali, Marathi, Kannada, Odiya, Malayalam. Official statistics categorise Indian films according to the languages in which they are distributed.

There is a great deal of mobility between the regional industries. Many workers in other regional industries, once their talent and popularity is established, move on to work in other film industries, nationally as well as internationally. For example, A. R. Rahman, one of the best known film music composers in Indian cinema, started his career in Tamil cinema in Chennai but has since worked in Bollywood, London, and New York. Similarly, films that succeed in one language are often remade or dubbed in others. Films like Padosan and Roja, for example, were re-made or dubbed from their original Bengali and Tamil versions respectively, into Hindi.