Question

Patol babu dosen't collect his payment after his role gets over.Why?

Answer 1

he gets self satisfaction and feels happy for doing a part in a film . 
moreover he didnot wanted to be paid for the small role which he enacted and that too just a syallbe.

Answer 2

because at end he realise a satisfaction by playing a role because he done bestest of best acting in his small role so he decided to go home without taking the money because he think this is my price that I done my best in this small role