As Russia’s invasion in Ukraine enetred its 13th day, India on Monday expressed its deep concern over evacuation of Indian students from Sumy saying that “a safe corridor for our students in Sumy did not materialise.”Speaking at the United Nations Security Council, India’s Permanent Representative to the UN, TS Tirumurti said, “We’ve reiterated our urgent demand for safe passage for all civilians, including Indians. We’re deeply concerned that despite our repeated urgings to both sides, a safe corridor for our students in Sumy didn’t materialise, reported news agency ANI.