A few cases of the more infectious South African and Brazilian strains of the coronavirus have been detected in India and all are travellers.
The South African strain of the coronavirus has been detected in four people in India and the Brazil variant has been seen in one, the government said today. All five have been quarantined.
There are 187 cases of the UK strain, the government said.
All their contacts have been isolated and tested.
The South African variant is circulating in 41 countries around the world, including the US. The UK variant has spread to 82 countries and the Brazilian strain of Covid has spread to nine countries.
The cases have emerged at a time there has been a sharp drop in the number of Covid cases in India, with just a few states like Maharashtra and Kerala battling relatively higher caseloads.
According to the World Health Organisation (WHO), the new strains are more contagious and spread faster, and vaccines could be less effective on these patients.