Katha Deithili Maa Ku 2004 one on netflix

Abinash Patnaik is a state level boxer. To participate in the state championship, he leaves his wife Sumita and son Ajay, because one condition of the contest is participants should be unmarried. He pretends to be a bachelor, and in an unavoidable circumstance, he marries another woman, Rama. Ajay, who is also a boxer, tries to unite with his stepmother and father as he had promised to his mother as she died.