Initially, the Jai Hind metro station was prepared to get elevated. On the other hand, the AAI objected that the elevated extend up into the airport might pose a menace to plane, Hence the route was further reworked and the station was shifted underground, 150 m through the Airport terminal creating. https://railway-kolkata04702.blogsidea.com/39565176/railway-recruitment-kolkata-rrb-group-d-32000-vacancy-pdf