Sambhar Idli is every body's favorite. My father in law is very fond of Triplicane Rathna Cafe's sambhar Idli. There is a programme called samayal Santhengal in Podigai TV on Saturdays 12 Pm. One day Mrs. Revathi Shanmugam told about Hotel Sambhar. i made like that it came out well and everybody enjoyed.
To grind idli i always add soybean to make protein rich.
Serve with mini idlis or with regular ones.