Reference Books
Elementary Number Theory
Schaum Outlines Abstract Algebra
Abstract Algebra by D.S.Dummit & R.M.Foote
Complex Analysis by Joseph Bak & Donald J.Newman
Complex Variables with Applications by Ponnusamy
Functions of one complex variable by John B. Conway
An Introduction to Ordinary Differential Equations by Earl A. Coddington
Elementary Differential Equations William Boyce & Richard Diprima
Differential Equations by Shepley L. Ross
Schaum's Easy Outlines of Differential Equations
Solution to Linear Algebra by Hoffman & Kunze
Linear Algebra and Its Applications by Gilbert Strang
Integral Equation & Boundary Value Problem by M.D. Raisinghania
Numerical Methods by S.R.K. Iyegar & R.K. Jain
Topology by James R. Munkres
Topology of Metric Spaces by S.Kumaresan
Introductory functional analysis by Erwin_Kreyszig
Functional Analysis by Walter Rudin
A course in point set topology by John B. Conway
A Basic Course in Real Analysis by Ajit Kumar & S.Kumaresan
Principle of Real Analysis by S.C. Malik
Real Analysis by N.P.Bali
Real Analysis by H.L. Royden
Theory of Equations