1870 at Gondalpara, Chandannagar, in his villa by the side of the Ganges. He was interred at the Sacred Heart Cemetery, Chandannagar. Recognition In recognition of Sikdar's mathematical genius, German Philosophical Society's Bavaria branch of Natural Science made Radhanath Sikdar a Corresponding Member in 1864, two years after his retirement. The Department of Posts, Government of India, launched a postal stamp on 27 June 2004, commemorating the establishment of the Great Trigonometric Survey in Chennai, India on 10 April 1802. The stamps feature Radhanath Sikdar and Nain Singh, two significant contributors to society. References Notes Bagal, Jogesh Chandra Unabingsha Shatabdir Bangla, 1941 Chaudhury, Ajana A Brief Historical Review of Early Weather Work in Kolkata, Psyche and Society, Kolkata, May 2009 Lahiri, Ashish Radhanath Sikdar and Colonial Science, Sahitya Samsad, Kolkata, 2017 Nath, Sankar Kumar Radhanath Sikdar: Taththeyer Aaloye, Chirayata, Kolkata-73, October 2012 1813 births 1870 deaths Bengali Hindus 19th-century Bengalis Bengali mathematicians Bengali scientists Indian diarists Indian surveyors Indian mathematicians 19th-century Indian mathematicians Scientists from Kolkata Hare School alumni Presidency University, Kolkata alumni Academic staff of Scottish Church College Academic staff of the University of Calcutta Human computers