With reference to the Shunga dynasty, Patanjali refers to the yavanas reaching up to Saketa and Madhyamika. The place Madhyamika is identified as located near

Patanjali, the renowned grammarian and author of the Mahabhashya, was a contemporary of the Shunga king Pushyamitra Shunga (2^nd century BCE). In his work, Patanjali mentions the Greek (Yavana) invasions of India using the examples: "Arunad Yavanah Saketam" (The Yavana besieged Saketa) and "Arunad Yavano Madhyamikam" (The Yavana besieged Madhyamika).

Madhyamika is an ancient city identified with the archaeological site of Nagari, located approximately 13 km north of Chittorgarh (Chittor) in Rajasthan. It served as the capital of the Sibi Janapada. Saketa is identified with modern-day Ayodhya. These references provide crucial historical evidence of the Indo-Greek advances into the Indian heartland during the Shunga period, likely under the leadership of the Indo-Greek king Menander I.