After teaming up with Aamir Khan in the hit movie "Ghajini", Tamil director director Murugadoss now wants to work with Shah Rukh Khan and says he is working on a story right now.

"Yes, I'm working on a subject. I had a meeting with Shah Rukh Khan once and I discussed a story with him. But frankly nothing has been finalised. We are still to meet many a times before a decision is taken," Murugadoss told reporters Monday at the launch of new Kannada film "Suryakanthi".

Murugadoss' "Ghajini", a remake of a Tamil hit, grossed about Rs.250 crore.

"Hindi film industry is big. The budgets are huge and we have freedom to narrate the film in a big way. I would like to direct one more Hindi film and then return to make South Indian films," he said.

The director says he incorporated several changes in the script of Hindi remake after watching "Memento".

"I watched 'Memento' before writing the script of 'Ghajini'. But one thing I have to emphasise here is that the characterisation of the hero was changed after I saw 'Memento'. In my original script, I had made the hero as a handicapped person after sustaining injuries. But I had changed it and included the memory loss syndrome after seeing Memento," said Murugadoss.

The director also said he had several rounds of discussion with lead actor Aamir who helped him to create a different script.

"You can see the change in ambience, narration in the Hindi version of 'Ghajini'. I couldn't have made a frame to frame remake of the (Tamil) film. I agreed with Aamir Khan that the climax needs to be changed. And his suggestions were really helpful in adding valuable commercial elements in the film. Aamir Khan is a brilliant actor and director," said Murugadoss.

Apart from Aamir starrer, Murugadoss has so far directed three Tamil films - "Dheena", "Ramana", "Ghajini". He has also directed Telugu film "Stalin" that had Chiranjeevi in lead role. All his five films have been big hits.

A graduate from the Bharathidas University, the 37-year-old director says he writes his own scripts and that reading books and interacting with people help him in writing good stories.

"A director should have a world view. His vision can not be limited when he takes up different type of films. I am interested to know many things and would like to do more research whenever I intend to work with innovative concepts," said Murugadoss.