Dev Patel consumed 12 energy drink a day!

'Slumdog Millionaire' star Dev Patel was so concerned about his energy levels dipping while on the sets of 'Best Exotic Marigold Hotel' in India he consumed 12 energy drinks a day.

The 21-year-old Indian origin British actor sars alongside legends like Dame Judi Dench, Tom Wilkinson and Bill Nighy in the film which is about a group of retirees who head to a recently done-up hotel in India, reported Radar online.

He said that he struggled to keep up with the pace while filming in the heat in Rajasthan.

"My energy had to be off the scale always, which is hard in that heat. I often got put to shame by the others in the movie. I was drinking like, 12 energy drinks a day just to keep it up, take after take. John the director just wanted more and more. I wish I had a tranquiliser on some scenes now," Patel said.

However his biggest worry was that his co-stars would think he was a crap actor.

"The week before I got cast was the most terrifying experience of my life because like, I just thought they were going to see right through me. These guys have done so much work, their resumes are just solid. I thought they would see right through me and they'd just know I'm crap! And I got to set and I couldn't have been more wrong," he added.

'Best Exotic Marigold Hotel' will be released in the UK on February 24.