Varma has made a reference to Sridevi and her beauty in his autobiography "Gun & Thighs". At the book's launch, he even shared how to see the actress make tea in Kapoor's kitchen was a "letdown".
The comments have irked Kapoor, who has reportedly called the filmmaker "crazy, bonkers and a man with a perverted mindset".
Varma in turn defended himself by advising that the producer should read the chapter before commenting on him.
"My advise to Boney is to read my full article in 'Guns and Thighs' on Sridevi-ji before spewing venom on me," he wrote on Twitter, adding that he respects the "English Vinglish" actress as a fan.
"I as a fan have more respect for Srideviji than what Boney has for her as a wife... Only Srideviji will know the truth of this in her heart."
Varma, who has done films like "Kshana Kshanam" and "Govinda Govinda" with Sridevi, commented that the actress's popularity is not only because of her acting talent but also because of her "thundering thighs".
"Srideviji's fame is not only because of her acting capacity but it's also because of her thundering thighs -- top critics of 'Himmatwala time'... If only acting talent is a measure for stardom, why wasn't Smita Patil bigger than Sridevi-ji... The thunder thighs made the difference," he wrote.
"I respect Srideviji for her thighs, her smile, her acting talent, her sensitivity, her persona and above all I respect her love for Boney," he added.
