The map shows the % of people in each state and union territory who declared themselves and their dependents to be a Muslim during the 2001 census of India.
Source: Population by religious communities Census of India, Ministry of Home Affairs, Govt of India
The Islamic distribution map varies within each district. The map shows state-wide average as reported by the Census. The table used to make this map does not provide further distribution of Sunni, Shia, Sufi, Ahmadiyya and other sects of Islam.

The disputed national borders SVG code used to create this map is a derivative work of File:India literacy rate map en.svg available on wikimedia commons.
Own work
M Tracy Hunter