Parineeti decided on a live chat on Twitter as she had amassed five million followers on the micro-blogging website.
Arjun took to Twitter when the actress was chatting with her followers, and asked her to tell the world on how the "Gunday" actor changed her life.
"Hello excuse me madam @ParineetiChopra please tell the world how I have changed ur life...u can chat later...this news is very important," Arjun tweeted on Tuesday.
The 26-year-old actress, who had made her Bollywood debut with "Ladies Vs Ricky Bahl" and then starred in films like "Shuddh Desi Romance" and "Hasee Toh Phasee", replied: "@arjunk26 baba you ARE my world, it changed the moment YOU chose me for Ishaqzaade. Tumhi ho bandhu, sakhaa tumhi #Parineeti5Million."
The duo starred together in the 2012 film "Ishaqzaade".