Prime Minister Narendra Modi on Wednesday slammed the Congress for "insulting" the architect of the Constitution, Dr B.R. Ambedkar and "depriving" him of Bharat Ratna, the country's highest honour till 1990.

"Ambedkar had drafted the Constitution....but the Congress kept him 'vanchit' (deprived) of the Bharat Ratna...Congress also insulted Veer Savarkar," Modi said while addressing an election rally here.