Dr Manindra Agrawal, Professor of IIT Kanpur, said that the third wave of Covid-19, which is caused by Omicron, has reached its peak in Delhi, Mumbai and Kolkata as predicted by IIT's Sutra model. He further said that Covid-19 will peak in Maharashtra, Gujarat and Haryana this week.

Earlier in an interview with ANI, Dr Agrawal, who developed the model, had predicted that the Covid-19 third wave will peak by January end. Dr Agrawal said that Covid-19 is spreading faster in India than projected earlier. In a series of tweets, the IIT Professor said, "There appear two plausible reasons for this: 1) there are two groups in the population, one with less immunity against Omicron and the other with more. The mutant first spread in the first group causing a sharp rise. Now the first group is exhausted and so the spread is slower."