Port Blair, Apr 12: The President of Bharatiya Janta Party’s A & N Unit, Mr. R Mohan has urged the Administration to close all doors for H1N1 virus. In a letter addressed to the Lt. Governor and the Chief Secretary Mr. Mohan has urged for proper screening of all the passengers coming from Chennai,Vizag and Kolkata as some cases of H1N1(Swine flu) have been reported in Coimbatore, Tamil Nadu and Delhi.