World Students’ Day is celebrated every year on October 15 on former president APJ Abdul Kalam’s birthday. The day is commemorated on his birth anniversary because of Dr Kalam was a dedicated teacher and identified himself foremost in that role before anything else.
Due to the former President’s love for students, various educational institutions in India observe Kalam’s birthday in their own way. In 2010, the United Nations declared October 15 to be World Students’ Day.
Source: The News18