Asked why the issue was not raised when singer Atif Aslam crooned a number for “Tiger Zinda Hai”, Supriyo said in a press conference: “‘Dil Diyan Gallan’ is nice song. There is another nice song sung by Atif in ‘Bajrangi Bhaijaan’... My morals as an artist or sensibilities, I agree that artistes have no boundary.”Time probably says that we might want to exercise some restraint when it comes to using Pakistani artistes in our films,” he said, adding that taking a stand is important and it is now for people of Bollywood to decide. (IANS)