Prime Minister Narendra Modi spoke to Russian President Vladimir Putin today and discussed the situation in the eastern Ukrainian city of Kharkiv, where over a thousand Indian students are stranded. Kharkiv is virtually under Russian control and the girl students have already been sent on their way to Ukraine's western border by train -- a 20-hour journey -- with the help of Russians, government sources told NDTV. Efforts are on to evacuate the boys also, sources said shortly before the 6 pm deadline was about to expire.