Synopsis This book on “Integral Calculus” with Differential Equation” has been written to meet the requirements of B.A., B.Sc., honours and post-graduate students of all Indian universities. The book is also useful for competitive Examinations. Attempt has been made to make the average students without sacrificing any rigor. Expansion of the Fundamental Principles is made clear and concise. At the same time the treatment is rigorous and up-to-date. The language of the book is simple and easily understandable. The book contains a large number of fully solved Examples, and care has been taken to include all varieties of Questions. The questions are selected from the past Examination paper of various Indian Universities. So that the students may be familiar with the types of questions which are usually set at the Examinations.