On being reached for a comment, Sushant explained why he dropped his surname from his Twitter account.
He said: "I did it to show that the unfortunate action is not what everyone with that surname endorses. They do not represent the entire Rajputs. There are ways to express your ideas, but violence is never an answer, and that too just on a mere speculation."
The incident on the "Padmavati" set occured on Friday in Jaipur. The Karni Sena activists damaged some cameras and other equipment as they opposed what they called distortion of historical facts in the film, which is about Alauddin Khilji, the medieval-era Delhi ruler, who fell in love with Rajput queen Padmavati.
While the film fraternity has strongly condemned the act, Sushant had his own way to express his sentiment.
"We would suffer till the time we're obsessed with our surnames. If you're that courageous, give us your first name to acknowledge. Padmavati," the actor had tweeted.
On Sunday, he tweeted: "There is no religion or cast bigger than humanity. And love and compassion makes us human. Any other division is done for selfish gains."
A Twitter user asked, "Why don't you change your name too if you don't follow any religion? Then why a Hindu name Sushant?? Remove that too."
To that, the actor responded: "I've not changed my surname idiot. I'm probably 10 times more Rajput than you are if you're implying courage. I'm against the cowardly action."
"Padmavati" features actors Ranveer Singh, Deepika Padukone and Shahid Kapoor in the lead. The film's shooting has stopped for now.