Mouthing expletives for her role in "Ishqiya" embarrassed Vidya Balan as she says she never uses foul language in real life.

"Oh! I was very apprehensive while using those slangs. I have never used them in my real life but I had to because the script demanded. When you will see this movie, you will understand that it is justified. The movie belongs to a certain terrain where slangs are part of their lingo," Vidya told in an interview.

The actress also revealed that she never rehearsed on the sets because of the heavy dose of slangs in the dialogue.

"I never rehearsed on the sets as I used to feel awkward. So I used to come prepared on the sets and once the director used to say action, I used to forget everything and everyone.

"All my inhibitions used to go away and I used to deliver my dialogues perfectly. This is what happens to me when the camera starts rolling," said Vidya, who was in the capital for the launch of designer Sabyasachi Mukherjee's first store here.

Set in eastern Uttar Pradesh, "Ishqiya" is a tale of romance between individuals caught in a web of crime, suspense, passion and deceit. Directed by first time director Abhishek Chaubhey and produced by Vishal Bharadwaj, the film also stars Arshad Warsi and Naseeruddin Shah.

In "Ishqiya", Vidya is paired with Arshad and plays a village woman.

"As I am playing a rural girl, my look is very much deglamourised so that I look like my character Krishna. It is an interesting role with many shades," said Vidya.

Dismissing rumours that some parts of "Ishqiya" are being re-shot, she said: "I don't understand where people get these baseless news. It is complete nonsense."

The actress, who has featured in movies like "Parineeta", "Heyy Babyy" and "Bhool Bhulaiyaa", will soon be seen in "Paa" in which she plays superstar Amitabh Bachchan's mother and Abhishek's wife.

Talking about the movie, Vidya said that she thanks director R. Balakrishnan for convincing her to do this role.

"It was Balki's (Balakrishnan) conviction to convince me to do this role. When I read the script, I wasn't sure whether I wanted to do this. But all thanks to Balki, I am proud that I am a part of this project," she said.

Releasing Dec 4, "Paa" is an emotional story of a father-son relationship and Amitabh will be seen as Abhishek's 13-year-old son Auro who is suffering from a rare disease, progeria, which accelerates ageing.