Ayodhya Mahatmyam is a text that consists of 10 chapters describing various holy waters and holy shrines of ayodhya, this text is a part of Vashnava Kanda from Skanda Purana.

Chapter Three of Ayodhya Mahatmyam tells us about the holy waters Svargadwara, the holy water body through which lord rama ascended to heavens taking every being of ayodhya, the greatness of Chandrahari, lord hari who was worshiped by the moon god, and the greatness of sahasrachandra vrata a vow to please moon god.