Punvani started her film career with Let's Enjoy in 2004. She got her big banner break with Yash Raj Films' Bunty Aur Babli in 2005 & Badmaash Company in 2010. She got noticed for her work in the period drama film Guru in 2007 directed by Mani Ratnam, for which she was nominated for the Filmfare Award for Best Costume Design and in the crime thriller film Rustom in 2016 directed by Tinu Suresh Desai, for which she was nominated for the Stardust Award for Best Costume Design. She was further lauded for her work in the crime drama film(s) David / David (Tamil film) in 2013 directed by Bejoy Nambiar, by a blog - 'The Lazy Critic' which gave her the TLC award for 'Best Costume'