Delhi Police on November 20 conducted a checking drive at Delhi-Noida border and penalised commuters for not wearing masks in public. Under COVID guidelines, people need to wear masks and maintain social distancing while commuting. Delhi government revised the fine yesterday, raising it to Rs 2000 from earlier Rs 500. COVID cases continue to surge as national capital faces 'third wave' of the virus. Active cases stand at 43,221 in Delhi.