Colonial history Video: How a 19th century Bengali mathematician first calculated the height of Mount Everest Radhanath Sikdar was a ‘human computor’ working under the British during the Great Trigonometric Survey of India. Ramakrishnan M Sep 20, 2017 · 09:00 am Play Video Editor: Joel George We welcome your comments at letters@scroll.in. Mount Everest Geography India Colonialism Mountains Surveying