Harish Chandra Rajpoot ( Doctor of Philosophy, IIT Bombay ) He authored his first book ' Advanced Geometry ' on research articles in Geometry & Radiometry. He also authored a new book ' Electro-Magnetism ' in Physics and proposed the ' Theory of Polygon ' to compute solid angle subtended by any polygon at any point in 3-D space, and Theorem for rotation of two co-planes . He proposed rank formula (1) and rank formula (2) to compute the position (hierarchical rank) of any linear permutation in the ordered sequences. He derived the generalized formula for the infinite classes of trapezohedrons/deltohedrons , n-polyhedrons with trapezo...