An estimated 17 crore children in the country were on Sunday given polio vaccines as part of the government's ambitious National Polio Immunisation campaign.
"We are hoping that during this campaign we have covered around 17 crore children between the age group of 0-5 years," a official of the National Polio Programme said in New Delhi.
President APJ Abdul Kalam had launched the campaign in New Delhi on Saturday.
The country has reported 641 polio cases in 2006, as compared to 66 in 2005.
The entire state machinery was activated to make the campaign a success. It was launched to control the virus from circulating during its peak season of September-November, he said.
Out of the total 641 cases reported so far, 90 per cent of the cases are in Uttar Pradesh, where senior officials monitored the campaign, the official added.
The state has reported 519 polio cases, followed by Bihar where 57 children have been afflicted with the paralytic disease. Delhi has reported six cases.
The other cases were reported from Haryana (18), Uttaranchal (13), Punjab (8), Maharashtra (5), Gujarat (4), Madhya Pradesh (3), Assam (2), and one each reported from Chandigarh, Himachal Pradesh, West Bengal, Jammu and Kashmir, Rajasthan and Jharkhand.