Based on available information, Dilip Kumar and Saira Banu are known as one of the longest-married couples in Bollywood.
According to information from 2019:
- Dilip Kumar and Saira Banu's marriage was set to reach 53 years in October 2019 (reference date: April 6, 2019).
It's important to note that Dilip Kumar passed away in 2021, but during his lifetime, his marriage to Saira Banu was one of the most enduring and celebrated in the Indian film industry.