Actor Saif Ali Khan was discharged from Mumbai Lilavati Hospital this afternoon, six days after he was seriously injured in a knife attack during a burglary attempt at his Bandra home. The 54-year-old actor is yet to exit the hospital as his mother and veteran actor Sharmila Tagore is helping him with the formalities. Mr Khan's wife and actor Kareena Kapoor Khan was at the hospital but left for home a short while back. Mr Khan, it is learnt, has been advised complete bed rest for a week and asked not to receive visitors to prevent any infection.