Q. Who among the following was referred to as “Siladitya”?
Answer: C
Notes:
Explanation: Harsha’s reign was marked by many military victories, and he brought most of north India under his control as he brought the five ‘Indies (regions)’ — Punjab, Kannauj, Bengal, Orissa, Mithila and assumed the title of ‘Siladitya’ (as mentioned in travel records of Chinese traveler Xuanzang (Hsuan Tsang).
Source: Tamil Nadu NCERT

