Wash and soak dal for 40-45 min, then drain the dal and keep aside.
Peel lauki and cut into cubes.
Heat oil into a presser cooker. Add cumin seeds, mustard seeds, once seeds pops up then add pinch of hing.
Add chopped onion and stir till it becomes golden brown. Add ginger-garlic paste and again saut it.
Add chopped tomatoes, chili powder, turmeric, garam masala, salt and stir fry until tomato pieces become little bit soft, do not overcook.
Now add the drained chana dal, copped lauki, 1 cup water and mix it well, cover the lid of pressor cooker and cook it for 4-5 whistle on medium flame.
Once done, let the pressor cooker cool down, and then remove the lid. Now add kasuri methi, chopped coriander leaves and mix it.
Lauki Chana Dal Sabji is ready, serve it with roti or steamed rice along with salad or raita.