NEW DELHI : Amid a surge in COVID-19 cases in the national capital, Delhi Health Minister Satyendar Jain Tuesday said the AAP government is alert on the pandemic situation here and keeping a "close watch" on it.Interacting with reporters, he also said over 12 lakh people have been vaccinated in Delhi till date.Jain's remarks on the pandemic situation came hours after the Delhi government imposed night curfew in the national capital from 10 pm to 5 am till April 30 in view of rising COVID-19 cases.The city had recorded 3,548 fresh cases on Monday, while 15 more people succumbed to the infection taking the death toll to 11,096, according to the Delhi health department.The order for night curfew will continue till April 30."The positivity rate.