which organisation created the topographical maps of india
Survey of India Great Trigonometrical Survey (1802–1852) was started by British surveyor Col. William Lambton on 10 April 1802 from St. Thomas Mount in Chennai to foothills of Himalayas. 36 inch huge half ton weight Theodolite was used, which took 57 days to measure the 12-km base line. This 5-decade project was completed under Survey General Lt. George Everest in the year 1852. Surveyor Radhanath Sikdar measured Mount Everest in 1852, with a height of 29,002 feet. Modern measurements indicate the height is 29,037 feet. This is regarded as the beginning of systematic topographical mapping in India and the founding of one of the oldest survey and mapping agencies in the world.
The Discovery of India The Discovery of India was written by India's first Prime Minister Pt. Jawaharlal Nehru during his imprisonment in 1942â€“46 at Ahmednagar fort in Maharashtra, India by British during the rule of East India Company. The Discovery of India is an honour paid to the rich cultural heritage of India, its history and its philosophy as seen through the eyes of a patriot fighting for the independence of his country. The book is widely considered one of the finest modern works on Indian history.[citation needed] book written in 1944 but published in 1946 as per ground sources