Tollywood hero Vishwak Sen essays the lead role, besides directing his maiden pan-India film 'Das Ka Dhamki'. The music promotions of the movie with a foot-tapping number saw stars Rana Daggubati and Siddhu Jonnalagadda lending a hand with the launch of the first single. While Rana Daggubati launched the Hindi version of the song - Almost Dil Ka Patha Mila, …