Roast tomatoes on gas on low flame.

Keep aside, let it cool, remove skin of tomatoes

Mash with potato masher properly, add onion, green chilli, black salt, cumin powder, kashmiri lal mirch powder, mix it properly.

Add coriander and mix well

Dhaba style tomato onion chutney is ready to serve. Serve with makki ki roti, bharat ki roti, attay ki roti, as you like.