Wash and peel the outer skin of the bottle gourd, grate in a bowl and let it rest for 5 mins.
Then squeeze out the excess water from the grated bottle gourd, keep it aside.
Make a paste of ginger and green chillies. Mince the coriander leaves.
In a bowl, take the flours along with the grated bottle gourd, salt, oil, green chilli and ginger paste and rest of the ingredients.
Mix well and let it rest for 10 mins.
The batter will be very sticky. If you are not able to make cylinders, add little more besan.
Have the steamer ready with water.
Grease your hands with oil, make cylinders and place on a greased plate.
Steam for 15 mins. Let it rest for 10 mins, before transferring to a plate.