Indian health officials have said there are signs of Covid-19 infections plateauing in some parts of the country but cautioned that cases were still surging in other states, linked to a new, stealthier version of the Omicron variant.

Most of the cases were concentrated in 10 states, where over 90 per cent of patients had mild symptoms and were being treated at home, Lav Agarwal, a federal health official, said at a media briefing.

The rate of infection in Haryana, Uttar Pradesh and Delhi in the north, Maharashtra on the western coast, and West Bengal, Odisha in the east has begun dipping, he said. However, cases are still rising in the southern states of Karnataka, Kerala, Tamil Nadu along with Gujarat and Rajasthan in the northwest.