Peel and roughly chop the turai or ridge gourd.
Finely chop the onions and tomatoes. You can alternatively puree the tomatoes too for a smooth curry. (I have pureed the tomatoes)
Heat a kadhai or pan, add 2 tblsp oil and cumin seeds. Once the jeera turns slightly brown, add onions
Saute the onions until they are translucent. Now add the tomatoes (chopped or puree).
Add red chilli powder, turmeric powder and some salt to taste. Saute this onion tomato mixture until the raw smell of tomatoes have gone off.
Add the chopped turai or ridge gourd pieces. Mix well and add salt to taste
Add about 1/4 cup of water, reduce the gas flame, cover and cook on low heat until the turai cooks reduces in volume
Do not add excess water else the curry would be too watery. Add more if you feel the vegetables need to cook
Now add some garam masala powder, finely chopped coriander leaves and give it a good stir
Let it simmer for a couple of minutes before switching off the flame
Serve it with flatbreads of your choice like rotis, parathas, naan, methi thepla or steamed rice.