Filmmaker-choreographer Farah Khan revealed that director Karan Johar received a threat from underworld ahead of the premiere of 'Kuch Kuch Hota Hai'. Farah said Karan was very stressed, adding, "Security was beefed up, and I think we went ahead with the premiere." Farah stated that Shah Rukh Khan, Salman Khan and Aamir Khan were pressurised by the underworld in 1990s.