[4]: 5 Between 1010 and 1153 CE, Rajaraja's successors continued the expansion, making the Chola Empire a military, economic and cultural power in South and South-East Asia.
[6]: 115 [3]: 215 Rajaraja Chola conquered peninsular South India, annexed parts of Sri Lanka and occupied the islands of the northernmost atolls of the Maldives.
[3]: 215 Rajendra Chola sent a victorious expedition to North India that touched the river Ganges and defeated the Pala ruler of Pataliputra, Mahipala.
[a][7]: 211–220 [5]: 61 An inscription from Sirkazhi, dated 1187 CE, mentions a naval officer called Araiyan Kadalkolamitantaan alias Amarakon Pallavaraiyan.
[8]: 92–93 The Cholas excelled in foreign trade and maritime activity, extending their influence overseas to China and Southeast Asia.
[6]: 117 Towards the end of the 9th century, southern India had developed extensive maritime and commercial activity, especially with the Chinese and Arabs.
[6]: 124 [9]: 465, 477 The Tang dynasty of China, the Srivijaya empire in the Malayan archipelago under the Sailendras, and the Abbasid caliphate at Baghdad were the main trading partners.
A Tamil inscription of about 1200/1256 CE from Krishnapattinam, on the Andhra coast, mentioned several sea vessels: There are marakkalam, toni, kalavam, vedi, and padavu.