Which of the following rulers developed a calendar in Bengal?

1. Shashanka
2. Chandragupta
3. Ghatotkacha
4. Srigupta

Answer: Shashanka

Explanation: King Shashanka played a pivotal role in the advancement of Bengal’s architecture and calendar. Under his reign, significant developments were made in the architectural landscape of Bengal, showcasing his patronage and influence. Additionally, King Shashanka made notable contributions to the calendar system, leaving a lasting impact on the temporal organization of Bengal.