Pataliputra
Explanation
The Magadha kingdom, one of the most powerful Mahajanapadas, underwent strategic shifts in its capital to leverage geographical and military advantages during its rise to imperial power.
Historical Analysis:
- Rajagriha (Girivraja): This was the earliest capital of Magadha. It was strategically advantageous as it was surrounded by five hills, making it impregnable to enemy attacks.
- Shift to Pataliputra: The capital was shifted from Rajagriha to Pataliputra by Udayin, the successor of Ajatashatru (Haryanka Dynasty).
- Reason for Shift: Pataliputra was located at the confluence of the rivers Ganga and Son. This location provided significant commercial advantages for trade and military advantages (acting as a Jaladurga or water fort), allowing better control over the growing empire compared to the landlocked Rajagriha.
- Other Options:
- Vaishali: It was the capital of the Vajji confederacy. Later, during the Shishunaga dynasty, the capital was briefly shifted to Vaishali before being moved back to Pataliputra by Kalashoka.
- Ujjain: It was the capital of the Avanti kingdom.
- Taxila: It was the capital of the Gandhara Mahajanapada.
Key Takeaway:
Udayin laid the foundation of the city of Pataliputra and shifted the Magadhan capital there from Rajagriha due to its central location and riverine communication routes.