New Delhi, March 11 -- He has played the good samaritan in reel life multiple times. But now, Arjun Kapoor has decided to take up a noble deed in real life as well. The actor, we have learnt, has lent his support to an 11-year-old boy, Rehaan Noormohammed Shaikh, who is suffering from juvenile myelomonocytic leukaemia. Interestingly, it all started on Twitter when Arjun was recently tagged on an image of Rehaan....