Indian Constitution is the basis of parliamentary system of government where the executive is directly accountable to the legislature. Constitutional History is a significant subject. Hence, it requires exclusive books. There is a dearth of exhaustive and comprehensive books, on this topic. This modest endeavour is aimed at filling the same vacuum. This exclusive book covers all aspects and dimensions of the subject. This compact book is bound to serve all the concerned circles-scholars, lawyers, teachers, researchers, students and of course the general readers.