Firstly take drumsticks cut into medium size pieces and rinse it keep it aside.
Take potatoes rinse it.
In a blender jar add cumin, mustard seeds, garlic, black pepper corn, black cardamom coriander seeds & some little water now blend till it fine paste keep it aside.
Heat the wok with 1tsp mustard oil put drumsticks and potatoes saute till it becomes golden colour on medium flame now transfer in a bowl keep it aside.
Add remaining oil in same wok add dry red chilli, fenugreek seeds stir it few seconds.
Add onion saute till it becomes translucent add prepared mixture,turmeric powder, Kashmiri red chilli powder, to taste salt stir and mix it properly on lower flame.
Cover and cook until becomes spices separates till oil stir in between interval timing because burnt it.
Add tomatoes saute till becomes massy then add fried veggies mix it properly stir it few minutes on medium flame.
Add as needed water now cover and cook until becomes tender on lower flame lastly add dry mango powder simmer for 2 or 3 mins on medium flame, now reduce the flame.
Now it is done you can enjoy with chapati or plain rice.
