Air India Vistara flight grounded before takeoff in Kolkata due to hijacking threat

<iframe
  src="https://hindustansphere.com/embed/cluster/50b2ebd5c3c7da31663da0a5c5f4de6c8aae9f21"
  width="100%" height="320"
  style="border:0;max-width:680px"
  loading="lazy"
  title="Air India Vistara flight grounded before takeoff in Kolkata due to hijacking threat"></iframe>