1987 film by Prayag Raj

When police officer Kapil Khanna discovers that his son was abducted at birth, and switched with a girl, he spends the next 20 years trying to track down his missing son, and finally finds him living with his enemy.

When Iqbal gets separated from his mother and brother by a flood, he becomes a coolie at Mumbai railway station. He then fights for the coolies rights and faces challenges from a businessman.