Wash the chopped coriander in water, shake off the excess and place in a parat or a platter. Add besan, salt, chilli, turmeric, garam masala, green chillies, cumin sugar, Heeng, til, lemon, rice flour and water. Now mix then up and gently mash up the ingredients with your hands for 5 mins.
This gentle mashing will allow coriander to start losing its water and make the ingredients come together as a dough ball.
Make sure not to add excess water nut just a few spoons as mentioned in the ingredient list. Once it comes together drizzle oil and keep aside. Take a glass bowl, a deep steel plate or any bowl that can be used for steaming. Apply a little oil on the inside of the bowl and place the Kathambari dough in it. Using your fingers press it to level it from all sides. I am using a glass bowl of this dimension 13.5cmx13.5cmx3.5cm (L x B x H).
You can steam this in a steamer for 15mins if you have a steamer at home. The other way is to boil water in a large handi, place a metal ring or katori. On this ring or Katori place the bowl to steam, just make sure that water should not touch the bowl. Steam for 15mins and then remove.
Give rest for 5mins and then run a knife on all the sides to loosen it. Upturn the kothambir Vadi on to a chopping board and then cut them into squares.
Heat a pan and add ½ cup oil. Now shallow fry the wadis on medium heat till they brown, turn them to the other side and brown them again.
Remove and serve them hot with chutney.