Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: The Great Trigonometrical Survey rakanga riri basa raiva nechinangwa chokuyera nyika yose yeIndia nenzira yakarurama yesayenzi. Yakatanga muna 1802 nomukuru mukuru wevarwi William Lambton, pasi pokutarisira kweEast India Company. Pasi pokutungamirira kwomutsivi wake, George Everest, basa racho rakaitwa mutoro weSurvey of India. Everest yakatsiviwa naAndrew Scott Waugh uye pashure pa1861 chirongwa chacho chakatungamirirwa naJames Walker, uyo akaona kupedzwa kwaro kwokutanga muna 1871.  Mubvunzo: Chinangwa cheGreat Trigonometrical Survey chaiva chei?
kuyera nyika yose yeIndia