Cholas rule forms an important part in the history of South India. It saw remarkable progress in almost all spheres of life such as polity, culture and economy. In 9th century, the Cholas gained control and overthrew the Pallavas. They ruled in the south of India from the 9th to 13th Century. The Indian Chola Empire conquered not only south of India but also extended their empire over the seas and ruled parts of the Maldives and Sri Lanka.
The founder of Chola Kingdom was Vijayalaya who conquered the kingdom of Tanjore during mid 8th century. The Indian Chola dynasty is an important landmark in the history of India. The Chola Empire occupied present Tanjore and Trichirappalli districts with some adjoining areas. The rule of Chola dynasty rose to prominence in 850 when their ruler Vijayalaya defeated the Pallavas and took over Tanjore from them. Due to the conflict between Pallavas and Pandyas, Vijayalaya occupied Tanjore and made his capital. He was succeeded by his son Aditya-I.
Aditya-I defeated Pallava king Aparajita and also Parantaka Viranarayana, the Kongu ruler. After Aditya-I the kingdom was ascended by his son Parantaka-I who ruled between 907 to 955 AD. Cholas power earned supremacy under his reign. Parantaka-1 annexed territory of Pandya King and soon conquered the Vadumbas. He defeated away all of the Pallavas power.
Rajendra I (1012 1044 AD) was also an able ruler like his father Rajaraja Chola. He went upto Bengal and became victorious on the banks of Ganges. He was given the title of "Gangaikonda" (the victor of Ganges). He built up a new capital called Gangaikondacholapuram. Rajendra Chola's greatest achievements was the conquest of Andaman and Nicobar islands. During Rajendra Chola reign the kingdom was called the "Golden Age of Cholas." After his death the Chola kingdom began to decline. His successors were weak and so the kingdom started disintegrating.