Engineering Mathematics - III JNTU, Kakinada" has been written strictly according to the revised syllabus (R19) 2019 - 20 of the First year (Second Semester) B. Tech students of JNTU, Kakinada. It covers Vector Calculus, Laplace Transforms, Fourier series and Transforms, Partial Differential Equations of First Order and Second Order lucidly. For many years, the book has evolved to be a must-read for all students of the subject and has also been a useful reference book for practicing engineers.