District-level rainfall data for all of India from 2006-2010 generated by India Meteorological Department

Average Rainfall for each district of India at a monthly frequency. The IMD site has the 5 years of data, the India Water Portal link is to an archive starting from 2004

IMD (India Meteorological Department)
http://imd.gov.in/section/hydro/distrainfall/districtrain.html

Georaphical Spread