Kamini (Reena Roy) abandons Anil Mehra (Jeetendra) and their baby son Prakash for her own selfish reasons. A few years later, Anil falls in love with Radhika (Sulakshana Pandit) and marries her. Radhika treats Prakash as her own son, who is now a six-year-old. Radhika meets Kamini in a store and they become friends, not knowing about each other histories. Soon, Kamini realizes that Radhika is Anil's second wife and her own son's stepmother. She longs to be with Prakash and be a mother to him again. When he has an accident, she donates her own blood to save him and in the process, leaves behind her selfish nature. In the end, Anil doesn't give her the second chance to be a mother to Prakash. Heartbroken, she says goodbye to her son as he leaves with Anil and Radhika.
- Genre: Romantic
- Runtime: 145 Minutes
- Awards: Filmfare Best Supporting Actress Award for Reena Roy, Filmfare Best Lyricist Award Anand Bakshi for the song "Aadmi Musafir Hai",
Apnapan is a 1977 Indian film produced and directed by J. Om Prakash. The film stars Jeetendra, Sanjeev Kumar, Sulakshana Pandit, Reena Roy, Aruna Irani, Iftekhar and Pinchoo Kapoor. The music is by Laxmikant Pyarelal. The film became a box office hit. It was remade into the Telugu film Illalu (1981) starring Shoban Babu (in Jeetendra's role), Sridevi (in Sulakshana Pandit's role), and Jayasudha (in Reena Roy's role).