India is preparing for 'V' day which according to the government is the world's biggest vaccination drive. The nationwide COVID vaccination drive is set to begin tomorrow (January 16). The government has announced that Prime Minister Narendra Modi will launch the COVID vaccination drive at 10.30 AM through a video-conference. Here are some behind-the-scenes from the Serum Institute of India's vaccine facility in Pune that is developing one of the approved COVID-19 vaccines 'Covishield' in the country.