Grind mustard seeds, cumin seeds,Red Chilies. ginger, and garlic into a smooth paste using a sil batta (traditional grinding stone) or a mixer grinder.
Wash and chop all the vegetables. Keep them aside.
Heat oil in a kadhai (wok) over medium heat.
Once the oil is hot, add pancha phutana (a blend of five spices commonly used in Odia cuisine) and let it crackle.
Add the diced potatoes and chopped drumsticks, and fry them for a few minutes until they turn slightly golden brown. Add choped tomatoes let stir few minute.
Add the mustard-cumin paste and sauté everything for a few more minutes until the raw smell disappears.
Pour in 2 glasses of water, cover the kadhai with a lid, and let it come to a boil.
Add the cut brinjals and Biri Badhi. Mix well and add salt to taste.
Cover the kadhai with a lid again and let it boil for a few more minutes until the vegetables are cooked and the liquid has reduced to form a thick gravy.
Your Alu Baigana Chuin Bandhi Besara is now ready to serve hot with steamed rice.