India sent an urgent appeal to all its nationals in Kharkiv, asking them to leave immediately, as Russian action intensified in Ukraine's second largest city. In back-to-back tweets in all caps, the Indian Embassy -- which had to stop operations in Ukrainian capital Kyiv yesterday -- said Indians should reach e towns of Pisochyn, Babai or Bezlyudivka latest by 6 pm local time (9.30 pm IST), on foot if need be.