Rajesh Khanna, Sharmila Tagore, Vinod Mehra's 'Amar Prem' released in 1972. It is considered a superhit movie of that time. Rajesh Khanna was the one who played the character of Anand Babu in this film. To bring his character Anand Babu alive, Rajesh Khanna watched the 1970 Bengali film Nishi Padma for 24 times. Can you imagine it? Actually this Bengali film was based on Bibhutibhushan Bandopadhyay's story Hinger Kochuri.

Rajesh Khanna took inspiration from Bengali superstar Uttam Kumar to act in this film, who played the lead role in Nishi Padma. Shakti Samanta advised Khanna to copy Uttam Kumar's performances in this film. Rajesh Khanna took time out from his busy schedule for the shooting of Amar Prem and worked for 6 months by staying awake all night. The effect of his hard work is clearly visible in the film, especially in his dialogue "Pushpa, I hate tears".

R.D. Burman's music and Anand Bakshi's songs like "Kuch To Log Kahenge", "Chingari Koi Bhadke", and "Raina Beeti Jaaye" made the film immortal. The song Chingari Koi Bhadke was added later, when Shakti Samanta liked Anand Bakshi's lyrics so much that he made a special scene for it. Shakti Samanta initially wanted to cast Raj Kumar, but Khanna got the role because of his passion. Amar Prem further enhanced the pairing of Rajesh Khanna and Sharmila Tagore, who had previously worked together in hits like Aradhana and Kati Patang.

Amar Prem is always remembered for its story, music and acting as well. It has an IMDb rating of 8.1/10. Rajesh Khanna's hard work, inspiration from Uttam Kumar, and Shakti Samanta's direction made the film a classic. The film is one of the immortal masterpieces of Indian cinema.