First check this TOI Article :
Vishal Karwal to play the acid attacker in Rangrasiya
Neha Maheshwri,TNN | Jun 30, 2014, 12.00 AM IST
A new track has opened up in Saurabh Tewari's Rangrasiya to increase the ratings.
It marks the entry of the main antagonist, who will throw acid on Paro's (Sanaya Irani) face.
Though his identity is yet to be revealed, we have learnt that the mystery man will be played by Vishal Karwal, who was last seen in an episode of Encounter. A negative role, it's apparently based on Shakespeare's Othello and Saif Ali Khan's Langda Tyagi. Vishal didn't revert to our text message.
Its really scary If,Vishal character is 'actually' based on 'Langda Tyagi' /OMKARA n story turned to 'Othello' way. Really don't want any tragic end of this beautiful Love story. ðŸ˜