It sounds like you're referring to a work by Dr. Yoganand Shastri about the Yaudheya Republic, a historical entity in ancient India. The Yaudheya Republic was one of the many small republics or "Mahajanapadas" that existed in ancient India. It was known for its military prowess and played a significant role during the time of the Maurya Empire.

If you have specific questions about the Yaudheya Republic or Dr. Shastri's work, feel free to ask! I can provide historical context or details on specific aspects of their research.