Calcutta was the national capital throughout the days till 1911 when the capital was shifted to Delhi. But despite money having shifted to Delhi, Calcutta remains a key city in India. Thus by virtue of being the erstwhile capital, it holds many important buildings and Paper Recycling (http://salemsouthlyonlibrary.info) institutions that end up being handiwork of the British. The nation’s Library, is just about the such…