Director Vivek Ranjan Agnihotri, whose `The Kashmir Files` emerged as a surprise hit this year, is ready with yet another film. This time, the subject of the film is indigenous Covid vaccine and the challenges that it faced. Vivek revealed the title of the film, `The Vaccine War` on Thursday on his social media.

Talking about how the film was conceived, he said, "When `The Kashmir Files` was postponed during COVID lockdown, I started researching on it. Then we started researching with the scientists of ICMR & NIV who made our own vaccine possible. Their story of struggle and sacrifice was overwhelming and while researching we understood how these scientists fought a war waged against India not just by foreign agencies but even our own people (sic)".