Dia Mirza was to do a special appearance in Sanjay Suri & Raj Kaushal's 'My Brother Nikhil' but backed out on the last minute. The producers had to replace her with model Dipannita Sharma, who was seen opposite Milind Soman in '16th December', and in a miniscule role in Rajiv Rai's 'Asambhav'. We don't know what the problem was, but Sanjay diplomatically maintains that Dia had date hassles! Dia and date hassles?