Assertion (A) Kharavela invaded the Satavahana kingdom and captured its territories.
Reason (R) Chandravarman declared himself the Lord of Kalinga.
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To prevent Kharavela from invading his country, King Satakarni of the western region sent him horses, elephants, chariots, and warriors in tribute. Umavarman was the first major monarch of the Mathara dynasty, declaring himself "Lord of Kalinga" in his thirty-first regnal year.