According to Koena

According to Koena all this might help her do underwater sequences in some film. Girls can do action oriented roles, if they are fit, she says. Initially Koena was terrified as two trainers would take her from the shallow end of the pool by handcuffing her to them but her hard work has got her to being comfortable with under water and extremely confident to do some action packed under water sequences.

Sumber: http://bolliwoodstories.blogspot.com/2009/04/according-to-koena.html