All educational institutions shall be shut down till Aug 17 in Pune, the state's IT capital, and the twin cities of Pimpri-Chinchwad, Pune Guardian Minister Ajit Pawar said.

And, while malls shall remain shut for a week, multiplexes and cinema halls shall be closed for the next three days, he said.

Many schools across the country were closed too.

In Mumbai, at least two schools -- St. Dominic Savio National Open School, Andheri east and Arya Vidya Mandir School in Juhu -- declared that they would shut for a week after some students were found to be infected.

Similarly, in Delhi, Sanskriti School, Delhi Public School (East of Kailash branch) had announced a week's holiday Sunday. On Monday, the junior Modern School followed suit as two of its students tested positive for the disease.

In Bangalore, the Frank Anthony Public School also announced that it would remain closed for a week. This is the first school in this southern tech hub to declare a holiday because of swine flu.

The outbreak spread in other states too.

The number of positive cases in West Bengal reached 10 while in Andhra Pradesh, which had reported India's first H1N1 case and 74 positive cases, went on the alert to contain the spread.

Uttar Pradesh, which has reported only three cases, was gripped by panic with people making a beeline for chemists to buy masks.

And in Chandigarh, 17 members of a family, who came in contact with an influenza A (H1N1) infected patient, were quarantined in their home.

Some states seem to have been spared.

Assam Chief Minister Tarun Gogoi Monday said there were no swine flu cases reported in the state so far, but said 100 doctors were being trained to deal with the virus in case of an outbreak.

'We cannot be complacent and hence we are getting some 100 doctors trained to deal with the disease,' the chief minister said.