Here’s where Bikram Singha is legally available:
"Bikram Singha" is a Bengali action drama film released in 2016, directed by Rajiv Kumar Biswas and produced by Ashi Dua.
While not free, Amazon Prime Video allows you to rent or buy the movie legally.
The 2012 action-thriller remains a landmark in Bengali commercial cinema. Directed by Rajib Biswas and produced by Eskay Movies , it stars superstar Prosenjit Chatterjee in a powerhouse double role. Where to Watch Bikram Singha for Free
ZEE5 carries a massive collection of Bengali films, including many Prosenjit classics.