Rani Mukerji seems like the latest B-Towner in need of an anti-perspirant.

The actress showed up to a jewellery event decked in a regal blue outfit but it seems the balmy weather got the better of her.

A giant sweat stain made the blue dress get a deeper hue near her armpits.

Maybe, Asin could help the No One Killed Jessica actress out. She does endorse an anti-perspirant, after all. Been there, suffered that... and all that.