प्रारंभिक ऋग्वैदिक समाज में वर्ण व्यवस्था मुख्य रूप से किस पर आधारित थी?

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?