When did Dutch company establish their factory in Bihar?

When did Tavernier came to Patna?

The Britishers defeated Dutch in the Battle of Bedara in: 

Where did East India Company established their factory in Bihar?

The French control over the trade of Bihar came to an end after the Battle of _____.

Denmark companies built factory in 1774 in Patna for the trading of: 

Which among the following was a chief opium producing zone during the British rule?

When was Job Charnock appointed as the head of factory in Patna?

Name the last Governor of Bihar during the reign of Aurangzeb?