Sidharth and Alia unveiled the cover of latest edition of Vogue yesterday, which features them in beach wear and KRK couldn't stop but post a derogatory comment calling the 22-year-old actress "bacchi".
An upset, "Brothers" star told KRK to "shut up".
"Sir! We also try very hard to tell you to shut up but you keep tweeting ! @kamaalrkhan," Sidharth tweeted.
In response to which KRK shot back, "Sir Ji @S1dharthM 130Cr ppl of India also try very hard to tell you to stop acting but you keep doing films to harass them (sic)."
"I think you need English reading classes sir!, as u didn't read and understand my previous tweet!"
KRK is known for taking pot shots at Bollywood celebrities including Sonakshi Sinha, Ram Gopal Verma, Karan Johar and Kapil Sharma.