Call it method in the madness or getting into the skin of the character, Dia Mirza takes the cake for not only working hard on her character but also working out hard for it.

The dainty Dia had a strong urge to star in Sanjay Gupta's Acid Factory after hearing his mind blowing script but couldn't ask him because he didn't say anything about casting her. So, Dia utilized the time on hand and sought the opportunity to get ready to look fit for the role in more ways than one.

The actress underwent heavy duty physical training for 40 days to build biceps and strengthen muscles. Helping her in her regime were action director Tinu Verma and Arbaaz Khan's trainer Rakesh.

Dia observed a military school like regime, waking up at 5.30 am, working with Tinu for about two hours daily in Film City, another two hours at home and then in the evening again for two more hours.

The rigorous schedule went for three months and the after effects have not only satisfied Dia but also Sanjay himself. Though Dia admits that she is a bit unconventional for the negative role, she overcame it and now looks the part. Hmm... so now you can't call her just petite Miss Mirza, as now she is quite a toughie!