Chennai will see muted New Year celebrations tonight as efforts are heightened to check the spread of a new mutant coronavirus strain, which has led to a new wave of restrictions worldwide. More than 10,000 policemen will be on duty across the city to ensure government-mandated Covid guidelines are being followed on New Year's eve. While 20 cases of mutant strain, first reported by the United Kingdom, have been reported across India, one case is in Tamil Nadu.