Sputnik V: First batch of Russian vaccine awaits green signal. What's causing delay?

At a time when India is recording over 3 lakh Covid-19 cases every day and is struggling for vaccines as many states, private and government facilities are allegedly running out of doses, the first lot of Russia’s Sputnik V vaccines arrived in India’s Hyderabad on May 1. It has been more than 10 days since the first lot arrived and, so far, there is little clarity on where the vaccines are and when they will be ready for use. To find out more, watch the video.