Kollu Rasam is a dish prepared in Kongunadu delicacy usually made to treat cold, cough and even aid weight loss. After marriage only I got to know about this recipe from my MIL and husband. My husband used to keep telling me about this rasam recipe that his mom usually makes at home. I was totally new to Kongu samayal and slowly I am learning how to make recipes one by one. Although there are various versions of this rasam online I am posting my own version here. My MIL usually grinds horsegram after cooking it and then adds to the curry but I used a mashed version of horsegram.