Take a wide pressure cooker add oil and sliced onions. Saute for 3 minutes. Add cinnamon stick, Clove and cardamom.

Add ginger garlic paste, sauté for 1 min.

Add turmeric, sauté for 1 minute and add chopped tomatoes. Add red chilli powder and salt. Add 2 glasses of water and pressure cook for 4 whistles. Meanwhile, take a small pan and add 1 glass of water with small inch pieces drumsticks. Make sure to peel the outer green skin of the drum sticks before cooking. Cook it for 10 minutes only.

Now open the cooker, remove cardamom, cinnamon and clove. Take a blender and blend the onion and tomatoes gravy.

Now add 2 glasses of water and curry leaves.

Cook for 10 minutes. Now add cooked drumsticks and squeeze 1 lemon juice. Let it cook on low flame for 5 minutes.

Lastly, take 1/2 cup water add besan to it and mix it nicely to make it a paste. Add this paste to the curry and cook on low flame for 5 more minutes.