It's a 'bitter-sweet symphony' for the ace directors Ram Gopal Varma and Karan Johar when it comes to holding each other's backs.

Well, everyone does know that the two do not share a very cordial relationship and they have always picked on each other; be it their movies, direction skills, stories, etc. that has only added to the 'mental rift' between the two.

But it seems like, this whole war is getting out of control as RGV has been tweeting away to glory and it has everything to do with Karan Johar and his upcoming movie 'Student of the Year'.

Here's what the director has been writing on his microblogging page describing K. Jo's movie, "Student of the year truly really and honestly looks like its the best film of Karan johar and the bestest film of Indian cinema ever"

He further tweets, "I love the sheer never before seen imagery and the extraordinary originality and even more extraordiny directorial brilliance"

When praising Karan, Ramu sure had a lot to say, "I rate Karan johar far far more higher than Mehboob khan v.shantaram Rajkapor guru Dutt and Bimal Roy"

"Kudos to Karan Johar for making Varun dhawa make me forget sharuk khan", he adds.

We're eagerly awaiting for a come-back line from K. Jo which is sure to create some interesting controversy.