Today is-
World Sanskrit Diwas/ Vishva-samskrita-dinam,
Rakshabandhan/ Rakshu celebrated on Shravanna Purnima/ Full moon day and Rishi Prav is also celebrated on this day.

In Ancient times, academic year in ancient Bharat Khand started on this day. On this day the students start the study of Vedas in the gurukulas.

Before the study of Vedas in Gurukulas, Yajñopavita - sacred thread - is worn. This ceremony is called Upanayana or Upakarma Sanskar. The old Yajñopavita is also changed on this day.

This tradition is still unbroken in modern Vedic schools.