Diwali in Mumbai is celebrated with great pomp and fervour. But behind the many glittery lights is an untold story. The diyas we use to illuminate our homes in Diwali comes from Asia's largest slum Dharavi. Kumbharwada is a settlement that was built by the migrants from Gujarat and is home to the pottery industry in Mumbai. Watch this video to see how they make the diyas we use to illuminate our homes during Diwali.