If Bipasha Basu is learning to swim and belly dance, fellow Bong, Koena Mitra is not too far behind. The actress has been keeping herself busy with various activities. But what has helped her most is learning how to do underwater action.

Koena says, "I can swim but couldn’t venture into the deep waters because I couldn’t look down into the depths. The moment I did, I would black out. So going anywhere deep underwater always gave me the jitters, and so I never we

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