This textbook is designed as per the UGC Choice Based Credit System (CBCS) curriculum to meet the requirements of undergraduate students of Mathematics. Major topics such as Partial and Total Differentiation, Double Triple and Line Integrals and Green's, Stake's and Divergence Theorems have been dealt with deftly to provide a further insight in the subject. Written in a lucid and concise manner, the textbook is adept for students.