What do you think happened after Bepin Babu came to know the truth? Was he angry with this friend for playing such a trick on him? Or do you think he decided to help a friend in need?
When he discovered the truth about Chunilal trick, I believed Bepin Babu must be upset. But at the same moment, Bepin must be angry, regret that in his fragile moment when Chunilal required him most, he did not help his ancient friend. He might have been able to assist his friend out of cash or help find a fresh job.