The famous Chinese traveller Hiuen-Tsang (also known as Xuanzang) visited India during the reign of Emperor Harshavardhana (Harsha) of the Pushyabhuti dynasty. Hiuen-Tsang travelled extensively throughout India from 630 to 645 CE, during which time Harsha ruled over a large part of North India (606-647 CE). His detailed account, "Si-Yu-Ki" (Records of the Western Regions), provides valuable information about India during Harsha's time. Chandragupta II ruled during the earlier Gupta period, visited by Faxian. Skandgupta was also a Gupta ruler. Dhandev is not a significant ruler associated with this period and context.