বাংলাদেশ জরিপ অধিদপ্তর মেনু নির্বাচন করুন The Indian survey had an enormous scientific effects. It had been answerable for one of many very first accurate measurements of a piece of the arc of longitude, and for measurements from the geodesic anomaly. It named and mapped Mount Everest and one https://land-survey-experts-bd10998.blogars.com/28888536/land-survey-services-bangladesh-no-further-a-mystery