AN INTRODUCTION TO MATHEMATICAL PHYSICS discusses the Curvilinear Coordinates, Vector Space, Matrices, Tensors, Beta Function, Gamma Function, Error Function, Dirac Delta Function, Green Function Method, Complex Analysis, Differential Equations, Bessel Function, Legendre Function, Laguerre Function, Hermite Function, Fourier Series, Fourier Transform and Laplace Transform. Each topic is explained with the help of simple exercises using simple language.