भारत के पूर्वी तट पर स्थित सबसे गहरी भूमि से घिरा और अच्छी तरह से संरक्षित बंदरगाह कौन सा है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?