Upanayana Ceremony is performed for the boy child where he is ready to learn all the Vedas, mantras and perform sandhyavandhanam every day when he attains the proper age. It is the process of wearing the sacred white thread (three white threads) along with Deerskin and Brahma Mudichi (Brahma Knot) used while performing the Gayathri Japa. 

The main rituals performed during Upanayanam are Brahmopadesam and Yagnopavidam.