In the Hindu religion, Gayatri mantra is the basic prayers for devotees. This mantra is very special for those people who wear janeyu. This prayer is chanted at morning or at the time of sunset. Complete mantra is mentioned below:
Om Bhur Bhuvah Swaha,
Om Tat Savitur Varenyam
Bhargo Devasya Dhimahi,
Dhiyo Yo Nah Pracho Dayateh
Om Bhur Bhuvah Swaha,
Om Tat Savitur Varenyam
Bhargo Devasya Dhimahi,
Dhiyo Yo Nah Pracho Dayateh