Champak Nagar
Champak Nagar is placed in Chaygaon, Kamrup and few in Anga. The ruins unearthed in the village Gokul, 3 km to the south of the Mahasthangarh citadel, 9 km north of Bogra, off the Bogra-Rangpur road, connected by a narrow motorable road about 1 km, is known as Gokul Medh, but is locally called Behular Basar Ghar or Lakshmindaraer Medh. Excavations in 1934-36 revealed a terraced podium with 172 rectangular blind cells. It is dated 6th-7th century. Local mythology associates it with legendary Lakshmindara-Behula. In the Mahasthangarh area in village Chenghispur, 700 m west of the north-west corner of the citadel has revealed remains of a temple. The mound is named after Sanoka, wife of Chand Sadagar. The Karatoya once a mighty river but now a small stream flows nearby.
Dhubri in Assam, further north of Bogra, is associated as the place where Neta, foster mother of Manasa, lived and worked as a washerwoman. A temple at Howrah, a Kolkata neighbourhood, is believed to have been built by Chand Sadagar.
Between the citadel and the eastern embankment at Gaur, a ruined structure, is claimed to be the house of Chand Sadagar.
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