Rajendra Chola I is one of two greatest kings of the Chola dynasty which, one of three ancient dynasties in the Tamil tradition, again rose in the middle of the 9th century and ruled for well neigh three centuries over a large part in South India with their capital at Tanjuvur (modern Tanjore also Thanjavur ). The power of the Chola dynasty reached its pinnacle during the reigns of Rajendra Chola (1014- 1042) and his father Rajaraja I (985-1014). Rajendra Chola was the worthy son and successor of his father. Though he succeeded to the Chola throne in 1014, his regal years are counted from 1012 AD when he was declared heir-apparent. By his military prowess and administrative skill, Rajendra Chola raised the Chola power to the zenith of glory. Probably in 1017 AD, he conquered the whole of Sri Lanka, the northern part of which was already annexed to the Chola empire during the reign of his father Rajaraja I. In the next year (1018 AD) Rajendra Chola forced the rulers of K