NEW DELHI : India tentatively reopened its shopping malls, restaurants and offices on Monday amid a surge in coronavirus cases and a dizzying set of rules aimed at preventing infections that left shoppers and office-goers bewildered.An elaborate set of drills, including a walk through a disinfection tunnel, other intricate sanitization protocols and staff who wore face shields, greeted the few shoppers who visited malls in New Delhi as they reopened.Mumbai, where malls will remain shut till 30 June, saw huge traffic jams on both Western and Eastern Express Highways as all private offices were permitted to reopen with up to 10% staff strength from 8 June.