Firstly add the roasted chana dal in a blender and make it fine powder
In a large mixing bowl Take rice flour and add besan/ kadalai maavu
Now add potukadalai / roasted gram dal powder ( seive ti)
Now add Jeera/cumin, salt and hing I added a 1/2 tsp chili powder but that is optional
Further add butter and rub it with flour mix well
Now slowly add water and start kneading
Now knead it to smooth and soft dough, if dough is tight then murukku will turn hard
Now choose any star nozzel and fill the dough in the murukku press
Now directly press the murukku in hot oil in medium flame
Flip the murukku / chaklis and fry them till the they turn golden brown
Store the murukku/ chakli in airtight container