It is very rare that one directors praises a fellow filmmmaker's movie. But Karan Johar makes an exception and lauds Rohit Shetty and his recent release "Bol Bachchan".

Released July 6, "Bol Bachchan" (BB) features Ajay Devgn, Abhishek Bachchan, Asin Thottumkal, and Prachi Desai in lead roles.

"So absolutely thrilled to hear the outstanding feedback Junior Bachchan (Abhishek) is getting for BB!!!! Way to go AB!!!!! Love you lots, " Johar tweeted.

"And I now believe Rohit Shetty has the formula! He is undoubtedly the most mainstream man we have in the business!!!! The Rs.100 crore man, " he further added.