The operation to move out the Indians, mostly students, from the eastern Ukraine city of Sumy was kept tightly under wraps as there were several reports of ceasefire violations in other humanitarian corridors announced by the Russian side since Monday. Hindustan Times has learnt that Indian students were barred from sharing videos and photos of their journey on social media or with their contacts. A similar move by some students during an abortive attempt to leave Sumy on Monday had triggered concerns that the security of the convoy had been compromised. Watch the video to know how Modi governent made Sumy evacuation possible.