Looks like Dhanush couldn't stop praising A.R. Rahman for his extraordinary music in Raanjhana, which is also dubbed in Tamil as Ambikapathy. In an exclusive interview to Galatta.com, Dhanush said that Rahman is the real hero of this flick, and his music has taken Ambikapathy to next level. He also said that the double Oscar winning musician's knowledge about different Indian cultures and states are truly mind blowing. Directed by Anand L. Rai, Ambikapathy has Sonam Kapoor as the leading lady. The film is likely to hit screens next week.