Step 1: First Council.
The First Buddhist Council was held at Rājgir under Ajātaśatru’s patronage.
Step 2: Second Council.
The Second Buddhist Council was convened around 383 BCE during the reign of Kalāśoka.
It was held at Vaiśālī to resolve disputes regarding monastic practices and discipline (Vinaya rules).
Step 3: Analysis of options.
- (1) Rājgir: Place of the First Council, not the second.
- (2) Vaiśālī: Correct, Second Buddhist Council was held here.
- (3) Mathurā: Not associated with councils.
- (4) Pāṭaliputra: Later council sites, not the second.
Step 4: Conclusion.
Thus, the Second Buddhist Council was held at **Vaiśālī**.