Vidhisha is an ancient city in Madhya Pradesh state in India. It is also the administrative capital of the district with the same name. It was known as Besnagar in ancient times. Vidhisha city was known as Bhelsa during the Medieval period. Heliodorus Pillar It is a 20 feet and 7 inches tall stone column, believed to be erected by the Greek ambassador of King Antialcidas, the Indo-Greek King of ancient times. It is located on the northern banks of River Vais. The inscriptions on this stone pillar tells us that it was built to pay homage to Lord Vishnu. Emperor Ashoka the Great of Maurya Dynasty, served as the governor of Vidisha during his father’s regime. Shunga dynasty was established by Pushyamitra Shunga, after the fall of the Maurya Empire. Its capital was Pataliputra, but later emperors such as Bhagabhadra also held court at Besnagar (modern Vidisha) in eastern Malwa.