In a mixing bowl take besan. Add salt, turmeric powder and red chili powder. Mix them. Add approximate 2 cups water and make lump free mixture.

In a pan heat oil. Add mustard seeds and cumin seeds. When crackles add chopped onion and garlic paste. Saute till onion turns translucent.

Now add prepared besan mixture and stir continuously. Mixture will start thickens. Add more water if required. Cook till mixture thickens or get desired consistency.