The Medieval Chola king Rajendra Chola I led an expedition to North India between 1019 and 1024. The expedition traversed the states of Vengi, Kalinga, Odda and Bengal culminating with their arrival at the Ganges river. The Chola victory over the Pala king Mahipala I is considered to be the climax of the expedition. In 1019 CE, Rajendra’s forces marched through Kalinga towards the river Ganga. In Kalinga the Chola forces defeated Indraratha the ruler of the Somavamsi Dynasty. The Chola army eventually reached the Pala kingdom of Bengal where they defeated Mahipala. The Chola army also defeated the last ruler of the Kamboja Pala dynasty Dharmapala of Dandabhukti. The Chola army went on to raid East Bengal and defeated Govindachandra of the Chandra dynasty and invaded Bastar region.