Which city was situated along riverine routes in ancient India?

The correct answer is Option 4 - Pataliputra

Pataliputra was situated along riverine routes in ancient India

Urban centres emerged in several parts of the subcontinent from c. sixth century BCE. Many of these were capitals of mahajanapadas. Virtually all major towns were located along routes of communication. Some such as Pataliputra were on riverine routes. Others, such as Ujjayini, were along land routes, and yet others, such as Puhar, were near the coast, from where sea routes began. Many cities like Mathura were bustling centres of commercial, cultural and political activity.