NEW DELHI, Oct. 23 -- Delhi Police has denied permission for Punjabi singer Diljit Dosanjh's concert in the Capital on October 30, citing security concerns, according to a letter the police wrote to the ticketing partner. However, as of Thursday evening, the ticketing partner had not removed the show listing from its app or website. Dosanjh's concert was to be held at Jawaharlal Nehru Stadium. P5...