Those who are History students or IAS aspirants etc. This book is really very essential for them. It’s a well written book by non of the other Upinder Singh (daughter of Ex. P.M Manmohan Singh).
The book is basically written for the study of Ancient and Early Medieval India (1200 C.E.) . You’ll learn a lot History about India after reading this book.
The price on Amazon.com of this book are around 500 -/ Rupees. Not cheap though but you wont regret after getting this one.