CoWIN users who search for Covid-19 vaccination slots over 1,000 times or generate more than 50 OTPs within 24 hours, will be blocked for a day. “The idea is to ensure those booking slots manually do not end up competing with bots,” the officials told. The system will also log out users, who have made more than 20 search requests for vaccine slots within 15 minutes, said the report.

“Users do not need to search 20 or more times within one or two pin codes or district in a short span of time once logged in. To do so is a violation and raises suspicions of bot activity,” he said. Such users are being logged out, he added. Meanwhile, the government has announced a new update that enables an applicant to correct any errors in name, year of birth, and gender printed on the CoWIN vaccination certificate. Users can make the correction through the CoWIN website.