A tough-as-nails Indian lawman dubbed the “Arnold Schwarzenegger” of Mumbai police committed suicide following a long battle with cancer, according to reports Friday.

Himanshu Roy, the head of the anti-terrorism squad in Maharashtra state, shot himself at home using his service revolver, the Northeast Today reported.

In his suicide note, the 55-year-old blamed his suicide on his battle with cancer, which forced him to take a long medical leave.

On Thursday, the ailing cop told a former state minister that “chemotherapy has its limitations,” BBC News reported.

Roy was celebrated as a “super cop” in India and was credited with solving some of the country’s most notorious cases, including one where a journalist was killed by a mob boss and the murder of Bollywood actress Laila Khan.

Roy’s dedication to working out and staying in shape earned him the Schwarzenegger moniker, and he would regularly chat about his fitness regimen with cops and reporters alike, the Gulf Times reported.

News of Roy’s death sparked an outpouring of tributes on social media.

“The loss of Supercop Himanshu Roy is a shock for us. He had an unmatched track record during his Crime Branch and ATS positions as an @IPS_Association officer. May the departed soul Rest in Peace,” poet Dr. Kumar Vishvas tweeted.

“Can’t believe the news about Himanshu Roy. Had heard of his health struggles. But he was such a fighter. V v sad,” Sreenivasan Jain tweeted.