The quarantine is mandatory, with fines of up to £10,000 ($13,990) for those who flout the rules.
The announcement comes after Johnson said on Monday morning that he would no longer fly to India to meet Prime Minister Narendra Modi, where the pair were to discuss climate and trade, among other issues.
Speaking about the cancellation, Johnson said he and Modi had come to the conclusion that their meeting should be postponed, saying it was “only sensible” given India’s Covid-19 situației.
India, that has a population of over 1.3 billion people, recorded 1,620 new deaths from the virus on Sunday.
