Peel off the skin and cut drumstick into lengthwise pieces.
In a blender, add coconut, garlic, tamarind, chilly powder, turmeric powder, coriander powder, jeera powder and water grind it coarsely.
Heat oil in a pan, add mustard seeds and curry leaves.
Add chopped small onion, green chilly, tomato and drumstick mix well.
Add grinded coconut, salt and enough water into it.
Cover and cook until drumstick cooks well.
Drumstick curry is ready to serve with rice.