This reference book, the first of its kind, is based on 1991 census data on religion, made available on computer diskettes by the Registrar General, India. The focus is on religious composition of population at the district level in each state and union territory of India. Apart from data on the main religious groups, namely. Hindus, Muslims, Christians, Sikhs, Buddhists and Jains, the 1991 census collected data on numerous other religious sects and beliefs: from Anandmargis to Zoroastrians. This book should be indispensable for social scientists, policy makers, planners, administrators as well as politicians who are interested in scientific data on the religious mosaic of India's population.