मानव प्रसवपूर्व विकास के भ्रूणीय चरण के दौरान सबसे पहले किस प्रमुख अंग प्रणाली का विकास शुरू होता 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?