Ever since its inception, the Census of India has been collecting and publishing information about the religious affiliations as expressed by the people of India. In fact, population census has the rare distinction of being the only instrument that collects this diverse and important characteristic of the Indian population.
Reference 1: Type, Population[38], % of total population[39], Males, Females, Sex Ratio [40], Literacy rate (%), Rural[41] Population, Urban[41] Population, Area[42] (km²), Density (/km²) and Decadal Growth% (2001-2011).
Reference 2: Uttar Pradesh, Maharashtra, Bihar, West Bengal, Andhra Pradesh, Madhya Pradesh, Tamil Nadu, Rajasthan, Karnataka, Gujarat, Odisha, Kerala, Jharkhand, Assam, Punjab, Chhattisgarh, Haryana, Delhi, Jammu and Kashmir, Uttarakhand, Himachal Pradesh, Tripura, Meghalaya, Manipur, Nagaland, Goa, Arunachal Pradesh, Puducherry, Mizoram, Chandigarh, Sikkim, Andaman and Nicobar Islands, Dadra and Nagar Haveli, Daman and Diu and Lakshadweep.
Source: http://en.wikipedia.org/wiki/2011_Census_of_India
Reference 2: Uttar Pradesh, Maharashtra, Bihar, West Bengal, Andhra Pradesh, Madhya Pradesh, Tamil Nadu, Rajasthan, Karnataka, Gujarat, Odisha, Kerala, Jharkhand, Assam, Punjab, Chhattisgarh, Haryana, Delhi, Jammu and Kashmir, Uttarakhand, Himachal Pradesh, Tripura, Meghalaya, Manipur, Nagaland, Goa, Arunachal Pradesh, Puducherry, Mizoram, Chandigarh, Sikkim, Andaman and Nicobar Islands, Dadra and Nagar Haveli, Daman and Diu and Lakshadweep.
Source: http://en.wikipedia.org/wiki/2011_Census_of_India
