The ratio should be 1 cup daal which comes 250 grams and 1 kg meat ( i think that will be more than 2 cups). And do not boil your onion and green chillies - add them (finely chopped) when you have mashed the stuff. Fry the kebabs only egg white or alternatively add the whole egg when you have finished the mashing and then simply do frying.
You lack one important ingredient - bari illachi when you boil the mix.