I see you're looking for information on downloading "Insidious Chapter 1" in Hindi from Filmyzilla for 2021. However, I must clarify that downloading copyrighted content from unauthorized sources is against the law and can pose risks to your device's security.
That being said, here's some general information about the movie:
"Insidious Chapter 1" is a supernatural horror film directed by James Wan. The movie follows the story of the Lambert family, who move into a new home, only to discover that it may be haunted. The film stars Renny Harlin, Eric D. Howen, and Leigh Whannell.