Director Karan Johar cannot stop raving about Hrithik Roshan's performance in the recently-released film, 'Kaabil'. The 44-year-old director took to Twitter to congratulate Hrithik for his act as a blind man driven to avenge the murder of his wife in the Sanjay Gupta-directed movie. He also wrote that as a helmer it was a treat for him to watch the actor put his best foot forward, only reflecting his growth with time.

Karan wrote, "As a filmmaker it's exhilarating to watch an actor deliver his best... .@iHrithik is a power house talent and is exemplary in #kaabil." The 'Ae Dil Hai Mushkil' director had worked with Hrithik in his 2001 film, 'Kabhi Khushi Kabhie Gham'.