Abhishek Bachchan on India's 'biggest health challenge'

As a member of one of Bollywood's most famous families, Abhishek Bachchan is used to life in front of the camera.

Now, the actor and producer is using his fame to highlight a cause far removed from the razzmatazz of the film world.

He is fronting a campaign to tackle lymphatic filariasis, commonly known as elephantiasis, a disease which he calls one of India's "biggest health challenges".

Bachchan spoke to the BBC's Sameer Hashmi in Mumbai about the disease and the stigma attached to those who contract it.