Horse gram Rasam (Soup)/Kollu Rasam Recipe without Rasam Powder:Rasam is always our family favorite. I usually prepare the Mango Rasam or Mangalore Rasam once a week surely. My grandma used to prepare the Kollu (Horsegram) Rasam in my childhood days. I thought I would not get this horsegram in Singapore. But when I went to the Mustafa shopping centre, I found this and started using to make rasam. These were also called as Galath, kulath, kulthi, Gahat, Kulith or Huruli Saaru. The Health Benefits of Horsegram or Kollu is more. It helps in weightloss, good for diabetics, reduces menstruation problems, and high in proteins, vitamin C and Iron.