Vivek gives all his time to Karan Johar

Bollywood actor Vivek Oberoi like the weather in London. The sky appears bright with sizzling sunlight at one moment and the next moment there is drizzling all around. He changes his opinion at the blink of the eye. He turned down Prakash Jha's Rajniti after signing it.

According to Vivek's PR Dale Bhagwagar, Vivek cannot arrange schedule for Ajay Devgan, Nana Patekar, Ranbir Kapoor and Manoj Bajpai starrer Rajniti. "Indeed, Vivek was offered Rajniti and wanted to do the film, too. But since he had already committed the required dates to the Karan Johar production to be directed by Rensil D'Silva (screenwriter of Rang De Basanti), he couldn't be part of Rajniti," confirms Dale.

Trying for a cover up Dale further adds, "However, Vivek has been an admirer of all Prakash Jha movies and is keen to work with the director in future".

While Vivek's posing for Rajniti is confirmed as a gossipy item, the rumoured actor is happy starring in the lead in Rensil's film where Saif Ali Khan and Kareena will be sharing screen space with him.

On the other front, Vivek is hoping for the best in his career with Popcorn Motion Pictures and Balaji Telefilms Limited's combo-production Mission Istanbul. In this Apporva Lakhia directed flick, Vivek has acted with Suniel Shetty, Zayed Khan and Shreya Saran.