The popular Chennai Sangamam is back in Chennai after a decade this Pongal season. Over a thousand folk artists from across Tamil Nadu are showcasing their art forms to Chennaites. Held at 18 venues, including beaches and public parks, the three-day event draws a large population to celebrate Tamil Nadu's food, culture and art. NDTV's Sam Daniel spoke to DMK's Kanimozhi, the face behind this festival.