Question

why didn't petrol Babu wait for his remuntion

Answer 1

patol babu had an ardent desire of acting .he just wanted to give his 100 % at the role and squeeze the least meanining of his monosylabic  dialogue. he considered doing his role with full devotion and dedication more important than getting paid.and when he was praised by baren mullick ,he felt he had accomplished his desire and left without waiting for his payment 

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Answer 2

he don't want money he has work for his own Herat satisfaction ....
the thing is- remember how I started on the stage