'It is a precautionary measure. There is no need for panic. We have been asked by the directorate of health services to close the school for seven days. Both the infected students are from Class 5,' she said.

In Himachal Pradesh, swine flu has taken its toll on India's 'toughest' mountain terrain biking event, Hercules MTB Himachal, as a majority of foreign participants cancelled their entries for the expedition.

'Almost 50 percent of the participants from European countries have cancelled their entries. Most of them cited swine flu as the only reason for not participating in the expedition this time,' Mohit Sood, president of the Himalayan Adventure Sports and Tourism Promotion Association (HASTPA), told IANS.

Though the national capital continues to report a huge number of cases (2,336 so far), state Health Minister Kiran Walia said: 'The situation is under control and the government is doing its best to provide treatment to H1N1 patients. I advise people to visit the doctor at the earliest if there is any symptoms of swine flu.'