Heat 2 tbsp oil in a kadhai. Add chopped onions and fry till golden. Then add the seeds paste to it along with ginger garlic paste and all the dry spices. Then cook till the raw smell is gone. Add finely chopped tomatoes, capsicum and washed moong masoor dal. Mix everything well. Cook for 5 mins on medium low flame till the gravy is thick enough for filling. Keep aside.