Economy and Development demands conceptual clarity and associated current affairs from you. You are not required to read very big books such as Dutt & Sundaram. Simple books like NCERT or Telugu Academy are sufficient.
Similarly, Indian Economy by Sanjiv Verma book is simple and easy to understand. However, it is not sufficient. You still should read NCERT books, Economic Survey, the budget and, current affairs. So if you can understand NCERT books, then you should not waste time reading this book.