This book is the outcome of the authors long teaching experience and has been designed to meet the needs of Civil Engineering curricula for the courses in Soil Mechanics and Foundation Engineering of Indian Universities. The book has been written mainly in the S.I. Units, although some problems and examples in the M.K.S. system have been included for convenience during the period of transition. The concepts have been developed systematically in lucid language, sufficient number of well-graded Numerical examples and problems for solution have been included, and the answers for the latter have been given at the end of the book. Summary of main points and chapter-wise references have been given at the end of each chapter. References are made to the relevant Indian standard at appropriate places.