Mumbai, Feb 13 (IANS) Anurag Kashyap has put 'Doga', a no-holds-barred action film with Kunal Kapoor, on hold saying it needs international level special effects and for that he need to take some training.

Based on Doga comics, the film will be produced by Sony International.

'That project 'Doga' requires a whole lot of preparation. It needs international level special effects for which I need to go for internship to the US with my cinematographer Rajeev Ravi for some months,' Kashyap told IANS.

'This would probably be the most expensive Indian film ever to be ever made. And I don't want to slip up. And Kunal needs to do a helluva lot of preparation. I'll go to 'Doga' after 'Bombay Velvet',' he added.

Kashyap, who has a history of censorial run-ins, is surprised at how liberal the censor board has been to his 'Dev D', which has hit the bull's eye at the box office.

'They understood its theme. It's definitely an adults film with minor cuts. My target audience is 18-35. If there was an over-15 censor certificate in India, I'd have definitely applied for it. Censorship in India is not obsolete any more. Sharmila Tagore and Vinayak Azad have brought in a liberal element to the censor board.'