In the film, Kangana plays a resident student of Delhi University. The 23-year-old stayed at the PG Women's Hostel in 2009. The producers arranged for her stay and took the required measures to protect her identity.

"The character of Tanu is rooted in Delhi University. I stayed there and it helped me in my performance. Till date I am thankful to the girl who hosted me and was my roommate. We ended up becoming friends," Kangana, who started working at the age of 16, said.

Directed by Anand Rai, "Tanu Weds Manu" will release Feb 25. R. Madhavan plays Kangana's love interest in the film.