Shah Rukh Khan has always been known for his great energy and enthusiasm on set.

 And recently, during an interview, maverick filmmaker Mani Ratnam confirmed as much.

 Ratnam, who has been promoting his upcoming magnum opus Ponniyin Selvan 1, while chatting with IANS revealed.

 The actor wanted to perform freely on top of the train without the aid of a safety harness.

“We just did what we were supposed to in a limited span of time.

Magic started with Rahman composing melody but on set, there were several challenges we were battling. 

 We were losing the light and facing logistical challenges as narrow gauge was too small to accommodate cameras.

 And broad gauge trains were too fast from the point of view of the crew’s safety. 

We didn’t get time to ponder over creative line of thought,” the director said.