Mumbai: Hrithik Roshan's brawny and rustic look in "Mohenjo Daro" has impressed millions with its grand trailer and now the makers have released the first song of the film. Titled "Tu Hai", the romantic number has been composed by music maestro A.R. Rahman and sung by Sanah Moidutty and Rahman himself. Well, Hrithik Roshan and Pooja Hegde's chemistry looks beautiful in this soft soulful romantic number and will surely raise your anticipation level! Hrithik will be seen romancing newbie Pooja Hegde and that is another reason why the thrill level is high for the period romantic drama. Playing the character of a princess, Pooja is seen wearing a white dress with a floral headgear. The actress certainly looks very beautiful. And as usual Hrithik's rugged avatar looks good. The Ashutosh Gowariker-helmed movie, set in the pre historic era marks the debut of Pooja in Bollywood and brings back Hrithik on the big screen after a long gap. The former beauty pageant contestant has worked in the Telugu films "Oka Laila Kosam" and "Mukunda". In "Mohenjo-Daro" Hrithik and Pooja's chemistry is looking good and fans are likely to be entertained by this fresh pairing. Ashutosh Gowarikar directorial "Mohenjo Daro" also stars Kabir Bedi, Arunadoy Singh and Suhasini Muley in key roles. "Mohenjo Daro" is slated for release on August 12 which will coincide with the release of Akshay Kumar starer "Rustom".