Very soon Tamil Nadu will be decked up to celebrate Pongal, the annual harvest festival. With the festivities, Kollywood has two big star releases set to make their way into theatres. Thalaiva Rajinikanth’s latest film Petta releases on 10th January and Thala Ajith is not far behind with his latest action flick. He will team up with director Siva in their fourth collaboration to take on the lead role in the action drama Viswasam.