पोंगल उत्सव के हिस्से के रूप में तमिलनाडु राज्य में प्रतिवर्ष जनवरी की किस तारीख को तिरुवल्लुवर दिवस (Thiruvalluvar Day) मनाया जाता है?

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?