Manually Calculating Elevation of a Single Point in India

The elevation of a point is significant for creating a 3D model of the earth or for giving the positioning of the object. There are different methods or instruments are used for determining the elevation of the point. In this method, we use the trigonometric function for calculating the elevation of a single point which can be as small as possible. for the calculation, we draw two parallel lines one from a single point (observed point) and another from the observer that are perpendicular to India?s mean sea elevation which is 160 m and is taken from Mumbai high. The elevation of the observer, angle, and distance between the point and the observer is also needed for calculating the elevation. The accuracy of this method is very high which gives the exact elevation of a single point.