The story of Andha 7 Naatkal was inspired by the life of the comedian J. P. Chandrababu; his marriage had failed after his wife revealed to him that she was in love with someone else.

The film was remade in Telugu as Radha Kalyanam (1981), in Hindi as Woh Saat Din (1983), and in Kannada as Love Maadi Nodu (1989).

Arriving in Madras, looking for a chance in music direction, they rent a thatched room on the terrace of the house of Vasanthi, a young woman.

Vasanthi's family is in deep financial trouble; to clear their debts, they arrange her marriage with Anand, a wealthy widower with a daughter.

He continues the story to the stage when the sick mother-in-law dies, and the heroine leaves her husband's home to live with her lover.

The story of Andha 7 Naatkal was inspired by the life of the comedian J. P. Chandrababu; his marriage had failed after his wife revealed to him that she was in love with someone else.

[1] The idea of creating the character of Palakkad Madhavan occurred to Bhagyaraj when he saw composer M. S. Viswanathan conversing in Malayalam with a Tamil-speaking tabla player.

[6] Although Ambika was having consecutive box-office failures, Bhagayaraj was convinced only she could pull off the role of Vasanthi and cast her, though others objected and wanted her replaced.

[13] Nalini Sastry of Kalki praised Bhagyaraj for his acting and direction, while also appreciating the performances of Ambika and Haja Sharif.

[6] Andha 7 Naatkal was remade in Telugu as Radha Kalyanam (1981),[15] in Hindi as Woh Saat Din (1983),[16] and in Kannada as Love Maadi Nodu (1989).

[17] Andha 7 Naatkal became a trendsetter in Tamil cinema for highlighting the importance of traditional values and their relevance in society.

[18] The skit "Enakkum Unakkum" was later used in Mookuthi Amman (2020) as the song Engels Ramasamy (RJ Balaji) has in mind which the title character (Nayanthara) correctly guesses.