Remove the skin of the bottle gourd and chop it.
Heat oil in a pan.
Add cumin seeds and fenugreek seeds to crackle.
Soak chana dal for 4 - 5 hours.
Strain it and add in the pan.
Add red chilly powder,turmeric powder and mix well.
Add one cup of water and cover the pan ,cook in a slow flame for 10 mins.
Add finely chopped tomato and bottle gourd and mix well.
Add half cup of water and cook in a slow flame.
When water absorb it add salt and mix well.
Garnish with coriander leaves and serve.