Actress Ameesha Patel revealed her 2000 film 'Kaho Naa...Pyaar Hai' got delayed by six months due to actor Hrithik Roshan's back injury. "While filming the climax scene, Hrithik did a jump and when he fell, we heard his back crack," she recalled. "We had to rush him to the hospital at 4 am and the shoot got postponed," Ameesha added.