निम्नलिखित वाक्य को चार खंडों में विभाजित किया गया है। उस खंड की पहचान करें जिसमें व्याकरणिक त्रुटि है। Millions of people / have been protected / from polio by a fluid / called as a vaccine.

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?