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After a slew of out and out comedies like "Namastey London", "Partner" and "Singh Is Kinng", Katrina Kaif is now working on two "difficult" films - Prakash Jha's political drama "Rajneeti" and Rajkumar Santoshi's romantic comedy "Ajab Prem Ki Ghazab Kahani"- and the actress wants to devote extra time and thought to the projects.

"This year I would like to allocate time to big films. The kind of films I am doing - 'Rajneeti' and 'Ajab Prem...' are a little more difficult. They need time and also a little more thought process, " Katrina told. The films are slated for release this year.

In "Ajab Prem..." Katrina shares screen space with Ranbir Kapoor and Upen Patel, while in "Rajneeti" she stars alongside a bevy of actors including Ranbir, Ajay Devgan, Arjun Rampal, Nana Patekar and Manoj Bajpai.

Katrina says that Santoshi's dedication and "knack for making his actors win national awards" is something that makes her want to work hard for his film.

"'Ajab Prem...' is a very different film. Raj-ji is a taskmaster on the sets and the results of that are visible. I need to dedicate enough time and attention to this film because I think the movie is going to be very special and very important for me. It's nothing like I have done before, " said the 24-year-old actress.

Katrina shares similar sentiments for Jha, who has helmed films like "Gangaajal" and "Apaharan" in the past.

"Prakash Jha is highly intelligent and highly interested in his project. A film like 'Rajneeti' is not something where I can just jump and say - 'Sir, my hair is done, my costume is done and I'm ready', something I can do in most films that are comic capers.

"For films like his, one has to research clothes. I can't decide on my own what I want to wear or what I would prefer. I have to follow the character I am playing. 'Rajneeti' is a very grounded, a very rooted film, and so I am going to be dedicating a little more time as the project requires it, " she said.

In "Rajneeti" Katrina sports a simple and de-glamourized look in a crisp cotton sari and with her hair neatly tied in a ponytail. Though the look bears a resemblance to Congress chief Sonia Gandhi, the director has denied that her role has anything to do with the senior leader.

Though Katrina has mostly starred in comedies like "Namastey London" and "Singh Is Kinng" (Vipul Shah), "Partner" (David Dhawan) and "Welcome" (Anees Bazmee) in her over five-year-old career, she says she "might not be doing another comedy, fun, masti film very dedicatedly any time soon".

Apart from "Rajneeti" and "Ajab Prem...", Katrina has Yash Raj Film's "New York", Anthony D'Souza's "Blue" and also a two-film deal with production house UTV in her kitty.