The Anand L Rai directed romantic-comedy, also starring R Madhavan and Jimmy Shergill, opened to decent reviews and good public response last week.
"It makes you a lot more confident in your instincts... What you believed in has clicked in such a big way. It definitely boosts your confidence. It is a nice feeling," the 28-year-old actress told reporters here.
A huge crowd had gathered to click her pictures and Kangana was greeted by "we love you Tanu" chants. The actress gave a thumbs up sign to the fans waiting for her appearance.
"And in between we had really unfortunate times, when women were reduced to furniture in the films. Now is a great time that does not mean they are women-centric films, they are just good films," she said at the launch of a clothing store.
While the director has given both Saif and Shahid their career's most defining roles in "Omkara", "Kaminey" and recently released "Haider", he is teaming up with the National-award-winning actress for the first time.
"Yes, I am doing 'Rangoon' and it is going to be an amazing film," Kangana said.