Peel the ridge gourd well and cut into small pieces.

Pressure cook toor dhal adding water for 1 or 2 whistles.

Heat oil in a pan add mustard seeds after it cracks add urad dhal and chana dhal. Saute till colour changes.

Now add onions, green chillies and curry leaves. Saute till golden brown.

Add the ridge gourd, turmeric powder and salt. Mix well. Cover and cook 5 minutes without adding water(these vegetables releases a lot of water).

Now add the cooked toor dhal. Mix well and cook till water is absorbed and has a semi gravy consistency.

Add grated coconut and mix well.