India, March 13 -- Aamir Khan dropped a bomb on the eve of his birthday. The actor met journalists at an informal meet and greet at a Mumbai hotel on Thursday. And after he chit-chatted and talked about his life and career, the actor introduced his 'partner' aka girlfriend Gauri.

Aamir and Gauri sat together and interacted with the media, talking about their journey together. The two met 25 years ago and lost touch, but reconnected a couple of years ago. Aamir said that they have been together for 18 months now and quipped, "See, tum logon ko pata nahi lagne diya na maine (I didn't let you guy know about it)."

The actor said he has tried to prepare Gauri for the 'mad world' of showbiz and even hired private security for her for his 'per...