Soak chanadal overnight with lots of water.
* drain the water using a colander.
* in a mixer, add the chanadal and coconut,grind into a coarse paste.
* there is no need to us water to grind, but it the dal is too dry then use 2-3 tablespoons of water. Not more.
* in a big bowl, add the ground chanadal, green chillies, hing, salt and onions.

Mix everything well and rest for 10 mins.
* the onions will ooze out water because of the salt.
* heat oil, when the oil is hot set it to medium.
* shape a small lemon sized mixture into a cutlet. Should not be too thick.
* drop it into hot oil.
* fry on medium heat until golden brown.