निम्नलिखित कार्यकर्ताओं में से कौन मुख्य रूप से 'नर्मदा बचाओ आंदोलन' से जुड़े हैं?

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?