Clean and cut drumstick. Chop onions and tomatoes finely.
Heat a nonstick pan with oil, add mustard seeds and urad dal, once they splutter, add onions. Fry till they are brown in colour, then add ginger garlic paste, saute for a couple of minutes.
Next add tomatoes, turmeric powder, and salt.
When the tomatoes turn mushy, add chili powder, coriander powder. Cook till oil comes out. Then add drumstick pieces.
Add required water and bring to boil.
When the drumstick is cooked, add coconut paste and cook on high flame for 5 mins. The drumstick gets cooked within 10 mins. Simmer and cook till the gravy covers the drumstick nicely.
If you make this a thick dry dish, serve it along with Vankaya Pappu. Else you can serve it with rice as such.
The final dish has to be a thick gravy coating the drumstick.