This is the first book of its kind in India. Within ashort compass it covers the whole field of doctrine of law on `Estoppel` and `Res-judicata`. Because of its exclusivity, quality, selection, clearness, terseness of its expressions and compactness of the subject-matter. this work stands unrivalled and unparalleled in the history of fundamental legal principles in the country. The doctrines well respected by both the Bench and the Bar, the book offers the best means for avoiding such situations to reach swift and definitive judgment. Richly updated with citations it provides a systematic analysis of the most recent applicable case law.