In a bowl add yogurt and half cup of water and mix well. Add in gram flour and whisk it so there is no lumps left. Add salt, sugar, cinnamon powder, citric acid and turmeric and whisk well. Set aside.
In a pan add oil and heat on medium heat. Add in the mustard seeds, cumin seeds and curry leaves. Once it starts fluttering add in the yogurt mix and stir continuously as it can form lumps. Slowly add in the other half cup water while stirring. Bring it to boil while stirring continuously. Cover and let it cook stirring occasionally until it starts forming film on the sides and sticks to the spoon. Remove and serve with fafda, muthia, patra etc.
