Mumbai, Aug 23 (PTI) Actress Konkona Sen Sharma, whose upcoming film "Talvar" is based on the sensational Aarushi Talwar murder case, feels such an incident should never happen in real life so that a movie is not required to be made on it.

The double murder of 14-year-old Aarushi Talwar and the domestic help of Talwars, Hemraj Banjade (45), in Noida in 2008, forms the crux of this Meghna Gulzar-directed film.

"This should never happen again... A crime is committed with a young girl where we don't know whether the evidence is compromised and we also don't know if justice will be served or not. This has been a travesty (of justice)," Konkana told reporters here last evening at the film's trailer launch.

"If a 13-year-old girl dies, you should know what is going on and the guilty should be punished. This should never happen and hopefully we should never make a film like this."

The 35-year-old actress, who plays Aarushi's mother Nupur in the film, found the role challenging.

"I found it (film) very interesting as a performer. It is an investigative thriller, we have shown various aspects of investigation in the case.

"There are (various) versions of this investigation, where (in one) parents are found to be innocent or (in another) parents are found to be guilty or (in another version) someone else is believed to be guilty. As a performer, it was challenging and interesting," she said.

Being a mother herself in real life, Konkana could understand the emotions of her character.

"It is heartless if you don't move emotionally. It was a horrific tragedy. As a mother also...it has had more impact to enact the scenes," Konkana said.

"But at the same time I don't think you have to be a mother to understand the horrific nature of this tragedy, human empathy is such that you can understand the misfortune."

The film features actor Irrfan Khan in the role of an investigative officer.

Konkana, who worked with Irrfan in 2007 film "Life In A...

Metro", said both have them are respectful towards each other.

"I think we have always been respectful and cordial and shy. I don't think that has changed," she added.