निम्नलिखित जनजातियों में से कौन सी जनजाति ऐतिहासिक रूप से भ्रातृ बहुपति विवाह (fraternal polyandry) का पालन करती थी?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?