This book's title is nothing if not accurate. It is indeed a very brief history of India, and as the author himself says in its introduction, it is meant as an entry point for further reading in Indian history. For me, it served that purpose very well, giving a broad overview of Indian history from pre-Vedic and Vedic communities all the way through to the modern nation-states of India, Pakistan, Bangladesh, and others. At only ~200 pages, it's pretty difficult to cover any period of India's history in any meaningful depth, but the book does provide an appreciation for the sweep of that history, as well as the macro forces in play there, from the interplay of ethnic groups and religions to trade, kingdoms, and colonialism. It definitely did whet my appetite for further reading in the area.
One of my personal favorite things about the book is how it informed my understanding of modern India, the internal forces that continue to shape it, and how its really very new and recent history as a nation state has influenced its composition and struggles, having had a major role to play in partition of the region into several different nation states. That perspective refreshed my thinking about how modern republics struggle with the same issues India does: how majority/minority relations are resolved in a representative democracy. Or not.
A relatively brief read, it's worth the investment of time, but it will likely leave you wanting to know more, as it did for me.