Swarg Dwar is believed to be the site of departure of Rama
to his abode Baikunth Dham.
Mani Parbat and Sugriv Parbat are ancient earth mounds, the first identified by a stupa built by the emperor Ashoka, and the second is an ancient monastery.
From Sahastradhara Tirtha on the bank of Saryu about 1.16 km in the east direction, the Purana have described the gate of heaven or Swargdwar. There is a story about it. The Valmiki Ramayana says that this heavenly gate was established by Vishwamitra. Vishwamitra was pleased with the service of King Trishanku, an ancestor of Ram. King Trishanku asked for a boon of attaining the heaven in bodily form. Maharishi Vishwamitra had performed a special yagya to fulfill this wish of Trishanku. The place where the yagya was performed is known as Swargadwar. From this place Trishanku was sent to heaven. It is also an important bathing ghat.