Bhola (Sunil Dutt), an innocent young man lives with his Maternal Uncle (Mama) Kunwar Pratap Singh (Om Prakash). Bhola is enraged at Pratap Singh who has been searching for a girl to marry despite his wife being alive. Angry, he leaves his uncle's house and moves in to live with his Aunt (Pratap's wife). There, he finds a beautiful neighbor Bindu (Saira Banu) and falls in love with her. Bindu however, gets annoyed by Bhola and refutes his advances. Vidyapati (Kishore Kumar), Bhola's friend and mentor comes to his rescue and spies on Bindu.

Bindu develops a close relationship with her South Indian music teacher Master Pillai / Masterji. Vidyapathi realizes that Bindu loves music very much and is the reason for her closeness with Master Pillai. He tries to teach Bhola to sing but fails miserably. Inspired by dubbed songs, he devises an idea and asks Bhola to mimic the lyrics to songs while he does the real singing in the background himself. Their plan to impress Bindu succeeds and Bindu slowly starts falling for Bhola, much to the chagrin of Pillai.

When singing at Bindu's birthday party, one of her friends becomes suspicious at Bhola's voice. She leads Bindu to discover Bhola's fake act, leading to Bindu getting enraged. In a fit of rage, she agrees to the marriage proposal of Kunwar Pratap Singh, which she had earlier rejected upon knowing that he is Bhola's Maternal Uncle. Vidyapathi and his gang visit Pratap Singh and plead him to reject the proposal for his nephew's love, to which Pratap Singh agrees. This further enrages Bindu who decides to marry Pillai, just to get even with Bhola.

Helpless to stop the wedding, Vidyapathi comes up a last ditch plan to fake Bhola's suicide. They arrange a suicide scene and start shouting and mourning Bhola's "death". Everyone arrives at the scene including Bindu who is deeply shocked and tries to wake him up. Vidyapathi tells her that only her unrequited love could have a chance of bringing the dead back and encourages her to try harder. After some more pretending, Bhola finally cries and wakes up, embracing Bindu. Everyone including Master Pillai is happy and shocked to see the power of true love. In the end, Bhola's Maternal Uncle and Aunt also reconcile and bless the newlywed couple.

• Sunil Dutt as Bhola
• Saira Banu as Bindu
• Mehmood as Master Pillai/Masterji
• Kishore Kumar as Vidyapati/Guru (Bhola's Friend)
• Mukri as Banarsi
• Keshto Mukherjee as Kolkatiya
• Raj Kishore as Lahorie
• Om Prakash as Kunwar Pratap Singh (Bhola's uncle)
• Moolchand as Pratap Singh's servant
• Dulari as Bhola's aunt
• Agha as Bindoo's Father
• Sunder as Pandit Janki Prasad/Panditji

The music of the film was composed by Rahul Dev Burman and the lyrics were written by Rajendra Krishan.

Kishore Kumar's character in the film was inspired by the personality of his uncle, Dhananjay Banerjee (a classical singer),^[5] and music director Khemchand Prakash.