Pakistan, March 16 -- Bollywood superstar Aamir Khan, who recently introduced his girlfriend Gauri Spratt to the media, revealed how he managed to keep their relationship a secret for more than a year.

For the unversed, Bollywood A-lister Aamir Khan introduced the media to his live-in partner Gauri Spratt on Thursday, ahead of his 60th birthday on March 14.

During the meet and greet at a Mumbai hotel, Khan revealed that he had known Gauri, a half-Tamilian and half-Irish from Bangalore, for over 25 years and the two have been dating for 18 months. "Dekha kuch bhi pata nahi chalne diya maine tum logo ko (See, I did not let you get a wind of this)," he joked to the media reporters.

However, when asked about how he managed to do so, the '3...