As per the mythological legends, The killing of Brahmin Ravana by Lord Rama is considered to be a sin, then the Lord Rama have committed Penance to get the rid of killed demon Ravana. It is also believed, the great Pandavas did penance at this place before the Mahabharata war and the Sage Bharadwaja also performed penance at this place and became the one of Saptarishis (seven sacred sages). The confluence of rivers Alaknanda and Bhagirathi takes place near the temple then this place are known as prayag and later is Devprayag and the unified stream is known as the Ganges (the Goddess Ganga).
The devotees can worship here for Lord Rama's original feet, this imprint present in the Raghunath Temple Complex.
Raghunathji Temple open at 4:00 AM to 12:00 PM