AAP national spokesperson Raghav Chadha on Sunday hit out at the BJP with respect to fire at a factory in Delhi that claimed as many as 43 lives.Speaking to ANI without mentioning any names, Chadha said, "As far as comments of the BJP leaders are concerned, it is very sad. In such a situation when all political parties should unite and support the families of the dead and injured, BJP leaders are doing dirty politics with their comments which is also saddening to the people.""More than 40 people died and over dozens injured. I offer my heartfelt condolences to the families who have lost their loved ones and pray to God to bless the departed soul and give the families the courage and strength to bear with this irreparable loss. The Delhi government is doing all possible help and investigation behind the incident," he said.Continuing his attack at the BJP, Chadha said, "They (BJP) are asking questions to Delhi government. I want to say that in Delhi the licence to construct a building ..