This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionChola Empire map corrected-01.svg
English: This map shows the greatest extent of the Chola empire during 1030 under Rajendra Chola I: territories are shown in blue, and subordinates and areas of influence are shown in pink.
The map is corrected to show are of influence and direct control in Sri Lanka. Correction was based on the work of Spencer, G. (1976). The Politics of Plunder: The Cholas in Eleventh-Century Ceylon. The Journal of Asian Studies, 35(3), 405-419. doi:10.2307/2053272.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.