The book deals with the history and civilization of India (150 A. D. to 350 A.D.) during the Naga-Vakataka Imperial period.
The book is divided into five parts:
(i) India under the Naga Dynasty (150 A.D. - 284 A.D.), (ii) The Vakataka Empire (284 A.D. - 348 A.D.) with an Appendix on the later Vakataka Kingdom (348 A.D. - 550 A.D.), (iii) History of Magadha (31 B.C. - 340 A.D.) and Samudra Gupta's India, (iv) Southern India (150 A.D. - 350 AD.) and the unification of the North and South; and (v) the effects of Gupta Imperialism. The author tried to reconstruct the history of India of that `dark age.`
This reconstruction is based primarily on the Puranas, and has been executed in consequence thereof.
The author has disproved the claim of Dr. Vincent Smith.