Bollywood star Sanjay Dutt, whose life has been so colourful and tragic that it became the subject of a biopic, has been diagnosed with lung cancer, Indian media reports said Wednesday.

The Hindi-language actor, nicknamed "Deadly Dutt", served time in prison for possessing guns supplied by gangsters responsible for bombings in Mumbai in 1993 and has also battled drug addiction.

On Tuesday Dutt issued a statement on social media saying he was "taking a short break for some medical treatment".

Press reports later quoted a tweet from respected film trade journalist Komal Nahta saying that the 61-year-old has been diagnosed with lung cancer and would travel to the US for treatment.

Dutt shot to fame in the mid-1980s in a string of action movies in which he performed his own stunts, earning him his nickname.

But the star was also struggling with substance abuse, including heroin and cocaine, that was said to have been sparked by the pain of losing his mother, Indian screen icon Nargis Dutt, to cancer.

After a break he returned with a string of hits in the late 1980s and early 1990s including "Jeete Hain Shaan Se" ("We Live with Style"), "Saajan" ("Beloved") and "Khal Nayak" ("Villain").

Sanjay Dutt shot to fame in the mid-1980s in a string of action movies in which he performed his own stunts, earning him the nickname 'Deadly Dutt'
Sanjay Dutt shot to fame in the mid-1980s in a string of action movies in which he performed his own stunts, earning him the nickname 'Deadly Dutt' AFP / Sujit JAISWAL

But his life took a dramatic turn when he was arrested following the orchestrated bombings in Mumbai, then called Bombay, in March 1993 that killed 257 people.

Dutt was eventually convicted in 2006 of holding guns supplied by mafia bosses who carried out the blasts.

The attacks were believed to have been staged by Muslim underworld figures in retaliation for religious riots in which mainly Muslims died, following the razing of an ancient mosque in north India.

He was originally given a six-year term and spent 18 months in prison before being released on bail in 2007, pending an appeal.

In 2013, his conviction was upheld but his prison term was cut to five years, and he was sent back to jail before being released early in 2016.

Dutt has also been married three times. His first wife Richa was diagnosed with a brain tumour in 1987 and died in 1996.

In 2018 a film about his life, "Sanju", was released covering the period from just before Dutt's Bollywood debut with romantic drama "Rocky" in 1981 to his release from jail in 2016.

His new film "Sadak 2" ("Road 2") is due to release on Disney+ Hotstar later this month.

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