The title track of Deepika Padukone's upcoming film Chhapaak was unveiled at PVR Juhu. Chhapaak is based on the story of acid attack survivor Laxmi Agarwal. Deepika was seen getting emotional during the title track launch..See Pics: .Also Read: Getting Viral: Deepika Padukone teaches journalists how to click the perfect shot at Chhapaak promotions
