The Johiya Rajputs may be modern-day descendants of the ancient Yaudheya warrior tribe that ruled in some areas of northern India until the period of the Gupta empire. This theory - which was proposed by Alexander Cunningham - is not certain and it has also been mooted that they may be connected to another ancient tribe, being the Audumbaras.
- Dasgupta, K.K. A Tribal History of Ancient India: A Numismatic Approach, Calcutta, 1974.
- Lahiri, Bela Indigenous States of Northern India (Circa 200 BC - 320 AD), University of Calcutta, 1974.
- Vedic and Aryan India by H. S Bhatia