निम्नलिखित में से भारत में स्थापित होने वाला सबसे पुराना वित्तीय संस्थान 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?