Soak the channa whole night, wash and chop the dill leaves finely,
Roast the cumin seeds separately.

In a mixie jar put the soaked channa, garlic, onion, dil leaves, salt, baking powder, green chilli, roasted cumin seeds, half of the roasted white sesame seeds then grind coarsely for 3/4th done.
In that grinded paste add the balance sesame seeds and mix it, make small balls from the mixture, make a plum size ball and gently press them and deep fry in hot oil until nice golden brown.The crispy

Dipping Sauce
mayonnaise - 3 tbspn
garlic - 1 pod
curd - 1 tbspn
olive oil 2 tspn
Blend everything in a blender.

For sandwich(serving suggestion)
We need readymade kuboos or long bun (samoon)cheese slices
carrot and cucumber cut into match stick size fried tikkis assembly as shown in pic