How many calories in 3 heaped tablespoon of curd?

On average, milk contains about 3.4% protein. 20% of that is Whey, and 80% is casein. It is the casein in the milk that produces the curd. Therefore, at least 2.72% of the milk used to make the curd will be protein.

The curd should theoretically be about 15-30% protein