  We give a pedagogical introduction of the essential features of General
Theory of Relativity (GTR) in the format of an undergraduate (UG) project. A
set of simple MATHEMATICA code is developed which enables the UG students to
calculate the tensorial objects without prior knowledge of any package
operation. The orbit equations of light and material particle in Minkowski and
Schwarzschild spacetime are solved numerically to illustrate the crucial tests
of GTR.
