They were relying heavily on Russia to supply the initial doses as well as all the technology transfer but Russia had a very high delta wave so they have diverted all stock locally.What has happened to the Sputnik V vaccine? It was supposed to be supplying in bulk but its lagging behind. Got approved in April but still can't supply required stock. So much noise was made for Sputnik's approval. Covishield & Covaxin will have to take the burden of vaccinating entire nation.