The script was originally based on a draft by Kenyan writer Cajetan Boy before being "Indianized" for Bollywood. If you are looking for a script draft academic index
(2009) is a gritty Bollywood crime thriller directed by Vishal Bhardwaj that follows the lives of two estranged twin brothers, (both played by Shahid Kapoor Index Of Kaminey--
While the search term yields results on obscure search engines like Yandex or DuckDuckGo, the risks outweigh the benefits. The script was originally based on a draft