The keyword "2021 top" suggests that in 2021, this specific title became a top downloaded or top searched movie on Filmyzilla. Several factors contributed to this:

Audiences searching for Mere Brother Ki Dulhan do not need to rely on high-risk torrent sites. Because the film belongs to the Yash Raj Films library, it is widely accessible across several reputable, global streaming platforms.

Mere Brother Ki Dulhan was originally released on September 9, 2011

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: A popular Bollywood film originally released in theatres in 2011, starring Imran Khan, Katrina Kaif, and Ali Zafar.