Wash drumstick and trim the ends. Cut it into 1 inches long,Set aside.Heat oil - add the items listed under 'to temper' let it splutter then add garlic and onions, fry till golden brown.
Add drumstick,red chilli powder, required water and let it boil.
Cover and cook for few mins until the drumstick turns tender.Meanwhile grind coconut,fennel seeds along with little water to a semi fine paste.
Once the color of the veggie changes and is cooked to soft, add required salt,coconut paste.Add 1/2 cup water
Let it cook till it becomes semi dry.Switch it off.
Serve with rice and sambar/rasam.