Viharas were for the purpose of living, Chaityas were assemblies for the purpose of discussions. Further, Chaityas were with Stupas, Viharas did not have stupas.
Rajadhiraja was a great warrior. He always led from the front standing shoulder to shoulder with his men on front lines and earned the title of Jayamkonda Chola which means the victorious Chola King.
EXAMIANS