Assault case filed against Saif Ali Khan

A case of assault has been registered against actor Saif Ali Khan in Mumbai after he allegedly punched a man on the nose at Wasabi restaurant at the Taj in Colaba last night.

Saif was apparently told to keep his voice down when an altercation occurred. The case has been registered at the Colaba police station.

Coming Up: A look at other badly behaved celebs.

Salman Khan: Arguably the baddest of Bollywood's bad boys, Salman Khan has routinely made headlines with his always brash, often outrageous behaviour. The actor has been time and again accused of beating up his girlfriends - including a famous incident in which Somy Ali accused him of breaking a bottle of cola over her head - his close friends and the media.

His most infamous spat took place at his then girlfriend Katrina's birthday party in 2008. The fallout from the much-publicised fight between Salman and Shah Rukh Khan divides Bollywood into two camps even today, nearly four years later.

In 1998, he was accused of killing two endangered blackbucks in Jodhpur, Rajasthan where he was shooting for Sooraj Barjatya's Hum Saath Saath Hain. In 2006, he was handed a a year's prison sentence and fined Rs 5,000 for the crime.

In 2002, Salman allegedly drove over four pavement dwellers, killing one. He was apparently drunk at the time but was subsequently released on bail.

The actor's vendetta against Vivek Oberoi is well known. He even apparently threatened to kill the actor, accusing him of having a affairs with top actresses, including Salman's ex-flame Aishwarya Rai. It didn't help that Vivek and Ash began dating not long after she broke up with Salman.

Most recently, it was reported that Salman threatened Bigg Boss 5 contestant Siddharth. The reason being Sid was rather rude to Salman's good friend and Bigg Boss inmate Mahek Chahal on the show. Salman slammed the allegations.

Shiney Ahuja: After delivering the critically acclaimed Hazaron Khwaishein Aisi, and box office hits Gangster and Life In A Metro, Shiney Ahuja was all set to be the next big thing in Bollywood.

That came crashing down as Shiney was arrested, when his 19-year-old domestic help accused him of raping her. After a series of conflicting developments that seemed straight out of a Bollywood script, the actor was handed a jail sentence but was granted bail in April 2011. For Bollywood, he remains a black sheep.

Charlie Sheen: The Hot Shots star's long career in troublemaking came to a head when he was fired from hit TV show Two and a Half Men by Warner Bros in early 2011 because of his bouts of wild partying, repeated hospitalisations and a bitter media campaign against the show's producer, Chuck Lorre. Sheen responded with a stream of vitriol in the press and on Twitter, calling the studio bosses “Trolls” and referring to himself as having “Adonis DNA” and “tiger blood.”

That was not all. Sheen was also fighting a bitter custody battle over his twin sons with estranged wife #3, Brooke Mueller. She used his public remarks, as well as conduct she claimed was threatening and violent, to seek a court order removing the children from his home. Mueller had also alleged that Sheen had threatened to kill her after she had asked him for divorce. Sheen was charged with felony menacing, third degree assault and criminal mischief, and received a sentence that included rehab, probation and anger management.

Sheen kickstarted his bad boy reputation when he was named as one of the high profile clients of an escort agency run by infamous madam Heidi Fleiss in 1995. He has also had trouble with drug abuse, spending time in hospital and rehab for overdosing on cocaine.

Britney Spears: Britney's innocent schoolgirl image took a beating when her mother, Lynne Spears, revealed in a book that her daughter started drinking at the age of 13, lost her virginity when she was just 14,.and experimented with drugs at 15. From then, it was all downhill for the popstrel. After a quickie Vegas wedding to a childhood friend and equally quickie annulment 55 hours later, Britney married dancer Kevin Federline in 2004. In 2006, she outraged child advocates after being photographed driving, steering the car with one hand and holding her one year old son with the other. She filed for divorce from her husband in November 2006, two months after the birth of her second son.

On January 3, 2008, in a night of drama, a shaven headed Britney refused give up her sons to representatives of Kevin Fedrline, with whom she shared joint custody. She seemed to be under the influence of an illegal substance and was hospitalized after police and paramedics were called. The next day, Federline was given sole custody of the children. Britney later received psychiatric treatment and was placed under the temporary conservatorship of her father and an attorney, who were also given control over her assets.

Lindsay Lohan: There was no sign of the charming 12-year-old from The Parent Trap when Lindsay Lohan was first called out for “irresponsible and unprofessional” behaviour on the sets Georgia Rule in 2006. She later attended meetings of Alcoholics Anonymous, all of 20 years old. In 2007, she was arrested for drunk driving, went into rehab and also wore an ankle bracelet that monitored her alcohol levels. Two months later, she was arrested on a second drunk driving charge and was also found to be in possession of cocaine. She went into rehab again, and was also handed a sentence of one day in jail, 10 days' community service and three years' probation. In 2010, Lindsay missed a court hearing and was ordered to wear an ankle bracelet, attend weekly alcohol education classes and submit to random weekly drugs tests. Two months later, a judge ruked that she violated the terms of her probation and handed her a 90 day jail term, of which the actress served 14 days. She spent another day in jail three months later when she filed a drugs test. In February 2011, Lindsay was charged with stealing a necklace from a jewellery store and was sentenced to 120 days in jail, 360 hours of community service and 120 hours at the city morgue. She served her sentence under house arrest, rather than in jail, wearing an ankle bracelet. In late 2011, her probation was revoked again and she was sentenced to another 30 days in jail and 400 hours of community service.

Her skirmishes with the law have never kept Lindsay off the wild side, with reported incidents in which she appeared to show a judge her middle finger during a hearing and threw a drink over a partygoer at a bar.

Tiger Woods: The golfer's squeaky clean image as a devoted family man lay shattered in 2009 as rumours of philandering snowballed into a scandal with as many as 11 women coming forward to confirm that they had been Woods' mistress. The list could unofficially have been 14, with three other unnamed women rumoured to also have been on the cheat sheet. The women included an adult film actress, a career party girl and a cocktail waitress, and offered raunchy text messages and voicemails from Woods as proof of his infidelity. Elin, his wife of five years and mother of his two children, divorced him in August 2010, leaving Woods to apologise to his fans and rebuild his tattered career as best he could.

Chris Brown: Indications of trouble began when pop singer Rihanna and hip hop star boyfriend Chris Brown pulled out of 2009's Grammy Awards hours before they were scheduled to perform. A car accident was rumoured to be the cause, but that turned out not to be true as reports surfaced of Chris Brown having given himself up to the police for domestic violence with an unidentified woman. Things got murkier as the woman was identified as Rihanna herself, and, in leaked police pictures, was shown to have suffered serious injuries on her face. Brown was charged with felony assault and criminal threats for attacking his girlfriend brutally in his car. He was sentenced to five years' probation, six months of community service, one year's domestic violence counseling, and a five restraining order that requires him to keep at least 10 yards away from Rihanna at all times.

Brown later apologized publicly to Rihanna in a two minute video, and, in a TV interview, blamed his actions on growing up with domestic violence at home where his mother was repeatedly assaulted by his stepfather.

Mel Gibson: These last few years have been one long rant from The Thunder From Down Under, or so it seems. In July 2006, Mel Gibson was arrested for drunk driving and, according to the arrest report, went into a furious anti-Semitic rant ending with: “the Jews are responsible for all the wars in the world.” In July 2010, Gibson was accused of racism after using an offensive term in relation to an employee. The same month, he was also recorded ranting offensively over the phone at his then girlfriend Oksana Grigorieva. She accused him of domestic violence and the two were embroiled in a heated exchange of accusations as well as a bitter custody battle over their daughter.

Gibson has a long history of alcohol abuse, his first drunk driving offence was in 1984. He was also accused of homophobia in 1991 after a newspaper interview in which he made derogatory comments about homosexuals, something he later blamed on being drunk at the time.

For his drunk driving offences, Gibson was sentenced to three years' probation and had to pay a fine. He was praised for probationary conduct at a progress hearing a year later, but it's almost certain that these are the labels he will have to wear for the rest of his life: racist, sexist, anti-Semitic and homophobic.

Robert Downey Jr: He may have risen like a phoenix from the ashes of a promising but erratic career to become one of today's most bankable Hollywood stars, but time was when Robert Downey Jr pretty much went through life on a cocktail of drugs. After a particularly acclaimed turn as Charlie Chaplin in the late, great actor's biopic, Robert Downey Jr spiraled into a series of drug related arrests from 1996 to 2001. He claims to have been an addict since the age of eight, having first been given drugs by his father, an addict himself.

In April 1996, he was arrested for possessing cocaine, heroin and an unloaded gun. A month later, out on parole, Downey Jr wandered into a neighbour's house while in a drug induced state and fell asleep in a bed. He was sentenced to three years' probation and was required to go through drug testing. A year later, he missed a drug test and had to spend four months in jail. The next year, he missed another test and was back in jail, this time for nearly a year.

In 2000, just when it seemed his career was on the mend with a role in hit TV series Ally McBeal, Downey Jr was arrested again for possession of cocaine and Valium. Another arrest while he was out on parole prompted Ally McBeal producers to write him out of the show. Three years of probation and rehab followed, but it still a couple of years before Robert Downey Jr would get a movie role, leave alone one that could showcase his stellar talent.