Bollywood actors often undergo extreme makeovers which not only change the way they look but also the fact that their health undergoes many highs and lows.

We've heard about actors who hurt themselves while shooting and then we've heard about actors who lose and gain weight to look their part. And this time, Ajay Devgn who has been there and done that, is at it yet again.

The actor who has always been known for his action, this time toyed with his weight as after beefing up for 'Singham Returns', he lost oodles of weight for his forthcoming film 'Action Jackson'.

He didn't lose 5-7 kgs but a whopping 17kgs. For this, he went on a strict diet of egg whites, boiled vegetables and chicken, to shed those 17 kilos.

Ajay had converted his vanity van into a mobile gym for his training which was equally intense. And all this hard work made way for Ajay's chiseled physique which has been garnering all the attention and compliments from the day the trailer has been released.