The famous grammarian Panini had his education at

The great grammarian Panini received his education at Takshashila, a renowned ancient centre of learning.

Pataliputra was a major political capital but is not remembered as the seat of Panini's schooling.

Nalanda rose to prominence centuries after Panini's time, so it was not his place of study.

Sridhanya Katak was a distant southern centre unconnected to Panini.

Panini is celebrated for the Ashtadhyayi, his systematic grammar of Sanskrit.

Takshashila attracted scholars in grammar, medicine and many other disciplines.