It has only one mine, which is always upgraded by the time you capture it though. Plenty of other resources as well. Sattagydia and Sindh have two mines each, also upgraded.
Sindh has the worst recruitment options of the three (still pretty good though, with Guild Warriors and Elephants and all that), but is the strongest in economical terms because of the two mines plus the possibility to build a level 2 port plus some other goodies.
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