Firstly, Grind everything given under the "to grind raw" section to a fine paste.
Pressure cook dal and potato with enough water to 4 whistles. open after pressure settles - mash and keep aside.
In a thick bottomed vessel, add oil, crackle cumin seeds and add bay leaf, diced onions and slit green chilli.
Fry until transparent. saute the chopped tomatoes until mushy.
At this stage, turmeric powder and coriander powder is added and fry until the raw smell goes off.
Further add dal potato mix, coconut masala, water and salt to taste.
mix well and let it boil for 5 minutes or until raw smell goes off.
serve hot with tiffin of your choice.