Omicron cases in India neared the 600 mark as the case tally reached 578 on Monday. Delhi has reported the highest number of 142 cases, followed by Maharashtra with 141 cases, Kerala (57), Gujarat (49) and Rajasthan (43). Meanwhile, the registration for COVID-19 vaccination for children in the age group of 15-18 years will start from January 1, 2022. Eligible children can register themselves on the CoWIN platform from January 1, 2022 and the vaccination campaign will start from January 3. ,