Which of the following two dynasties had regular conflict with the Rashtrakutas that created a political vacuum in northern India which facilitated the invasion of Mahmud of Ghazni?
The Gurjara Pratiharas and the Palas
Towards the close of the 8th century AD, there were three great powers in India – the Palas in the east, the Gurjar-Pratiharas in the north and the Rashtrakutas in the deccan. The tripartite struggle for the supremacy among the Palas, Partiharas and the Rashtrakutas was the desire to possess the city of Kannauj ,which was then a symbol of sovereignty.