Bollywood actor Anupam Kher during the trailer launch of his upcoming movie ‘The Accidental Prime Minister’ opened up about how difficult it was for him to portray. Anupam Kher said, “I was watching televion, I saw Dr Manmohan Sing hwalking. My actor in my mind said let me see if I can walk like him. I was a disaster, and that challenged me. I rehearsed for half an hour and I could not get it.” Kher further said, “Everything is very difficult about Dr Manmohan Singh, discoordinated, very monotonous voice and yet there has to be variations. I took about 6 to 7 months to prepare this role. I must have seen hundreds of hours of footages, but the most difficult was the voice part of it, because it is a typical particular voice.” “It is not one of the most difficult, but the most difficult role I have done in my life,” he added.