BJP chief JP Nadda today praised what he called "Modiji's Suraksha Kavach", pointing to the laxity in observance of Covid safety measures in Kolkata. "You all are sitting close to each other, no one is wearing a mask. This is Modiji's Suraksha Kavach," Mr Nadda said in his address to the BJP state executive at the National Library in Kolkata. "Look at pictures from abroad. Even (US President) Biden is wearing a mask," he added as a point of reference.