India has given regulatory approval to Russia's one-shot Sputnik Light Covid-19 vaccine after it authorised Russia's main vaccine — the two-dose Sputnik V — last year, the Russian Direct Investment Fund said.

Sputnik Light, the first component of the Sputnik V vaccine, can be used as a booster shot with other vaccines, RDIF said.

Head of the fund Kirill Dmitriev called Sputnik Light in a statement “the solution to increase efficacy and duration of other vaccines, including against Omicron variant”.