Set in the 1950s, Vikramaditya Motwane directed film will see Ranveer playing an archeologist.
"It was very interesting to do a period film because a new world is created. I had no clue about 1950s, so to live a character who is living in that era, was very interesting," said Ranveer.
"I did very interesting preparation before playing the character. I stopped watching television and using mobile," the actor told reporters here while shooting for a promo of Master Chef India Grand Finale Tuesday.
"I became very calm. I have given a very calm performance," he added.
His last release was 2011 hit Ladies vs Ricky Bahl and Ranveer wants to end the 'long wait' with Lootera. Featuring Sonakshi Sinha in the female lead, the film is slated for July 5 release.
"My film is releasing after a very long time, it's been 19 months when my last film was released. It's been a long wait. I have seen the film and I am very happy. I am very excited and can't wait people to see it," said the 27-year-old, who made his debut with blockbuster Band Bajaa Baaraat in 2010.