Director David Dhawan just can't stop raving about beauty queen-turned-actress Lara Dutta for maintaining a weight of 58 kg since her debut in Bollywood with the 2003 movie "Andaaz".

The director is so impressed that he calls her "Miss Perfect 58".

"David calls Lara Perfect Miss 58 and is completely amazed how the actress has maintained 58 kilos for last six years. Lara has one of the best figures in the showbiz and is also an amazing actress, " said a source close to the unit.

Dhawan is extremely fond of Lara's acting and comic timing. He was so impressed by her work in his 2007 hit "Partner" that he decided to cast her again for his forthcoming film "Do Knot Disturb".