When Ramananda Raya was governor, the state capital, Vidyanagara or Vidyapura, was located on the southern side of the Godavari, at the confluence of the Godavari & the sea. That was the part of the country which at that time was known as Rajamahendri

Expressions researched:
"when Rāmānanda Rāya was governor, however, the state capital, which was known as Vidyānagara or Vidyāpura, was located on the southern side of the Godāvarī, at the confluence of the Godāvarī and the sea. That was the part of the country which at that time was known as Rājamahendrī"

Sri Caitanya-caritamrta

CC Antya-lila

Near Rājamahendrī is a famous railway station. Śrīla Bhaktisiddhānta Sarasvatī notes that the present Rājamahendrī City is located on the northern bank of the Godāvarī. At the time when Rāmānanda Rāya was governor, however, the state capital, which was known as Vidyānagara or Vidyāpura, was located on the southern side of the Godāvarī, at the confluence of the Godāvarī and the sea. That was the part of the country which at that time was known as Rājamahendrī.

CC Antya 9.122, Translation and Purport

“‘I made Rāmānanda Rāya the governor of Rājamahendrī. There is practically no account of whatever money he took and distributed in that position.

Near Rājamahendrī is a famous railway station. Śrīla Bhaktisiddhānta Sarasvatī notes that the present Rājamahendrī City is located on the northern bank of the Godāvarī. At the time when Rāmānanda Rāya was governor, however, the state capital, which was known as Vidyānagara or Vidyāpura, was located on the southern side of the Godāvarī, at the confluence of the Godāvarī and the sea. That was the part of the country which at that time was known as Rājamahendrī. North of Kaliṅga-deśa is Utkaliṅga, or the state of Orissa. The capital of southern Orissa was known as Rājamahendrī, but now the location of Rājamahendrī has changed.