The audio of Kollywood flick Osthi starring Silambarasan in lead role will be released on October 6. "We are deliberately delaying the single because the main audio is releasing on October 6 along with the trailer. So there isn't much time for a single. So it will be a direct audio launch without the single. Four songs have been completed and even Munni will be done very soon", said STR. The shooting of the flick is almost complete and the team is busy with the post production works for the flick. Osthi has Richa Gangopadhyaya doning the lead role. It is a remake of bollywood hit, Dabangg.