Sony Music has bagged the audio rights of Silambarasan's forthcoming 'Osthi'! 'Osthi' that features Simbu, Richa Gangopadhyay and Sonu Sood in lead roles is gearing up for a Diwali release and is directed by Dharani. The music is scored by Thaman.

The songs of 'Osthi' are said to be power-packed, like how STR's songs always are and sources vouch that 'Kalasalla...', an item number featuring STR, Mallika Sherawat and Sonu Sood and crooned by T Rajendar and LR Eswari will rocket up the charts.

The film's audio will be unveiled at a grand scale on October 6 along with a trailer release. 'Osthi' is the remake of Bollywood super hit 'Dabangg' that had Salman Khan and Sonakshi Sinha essaying the lead roles.

With a director who knows his commercial mantra like the back of his hand, Simbu who is at his mass best, a heroine who has shot to fame even before her debut, Mallika for an item  number and Thaman with peppy tunes, 'Osthi' sure boasts off many USPs.