Saw the recipe of Lubna of Kitchen Flavours it was the same way of my Granny but a little different........
Ingredients to boil & grind to a smooth paste
Ground chicken kheema-2 cups
Channa dhal-1 cup
Ginger & Garlic paste-2tsp
Salt to taste
Egg-1 for binding
Oil to shallow fry
Curry & Mint leaves-1/4 cup together
In a pressure cooker boil all the above ingredients with very little water(1/4 tumbler) till dhal & kheems is cooked.If water is still there fry it till dry.Cool & grind it with Curry & Mint leaves to a smooth paste.Add egg and mix it.Heat oil in a pan shape it into vada & shallow fry them in medium heat till brown.Serve it with ketchup or any dip.
Do not add too much of water while cooking the dhal.Grind the cinnamon stick & then cook it otherwise it may not get powdered in the mixi well.Do not fry them in high flame.