The administration of Harsha was organized on the same lines as the Guptas did. Hiuen Tsang gives a detailed picture about this. The king was just in his administration and punctual in discharging his duties. He made frequent visits of inspection throughout his dominion. The day was too short for him. Taxation was also light and forced labour was also rare. One sixth of the produce was collected as land tax. Cruel punishments of the Mauryan period continued in the times of Harsha. Hiuen Tsang condemned the trials as barbarous and superstitious. Harsha's army consisted of the traditional four divisions - foot, horse, chariot and elephant. The number of cavalry was more than one lakh and the elephants more than sixty thousands. This was much more than that of the Mauryan army. The maintenance of public records was the salient feature of Harsha's administration. The archive of the Harsha period was known as nilopitu and it was under the control of special officers. Both good and bad events happened during his time had been recorded.
Both Bana and Hiuen Tsang portray the social life in the times of Harsha. The fourfold division of the society - Brahmin, Kshatriya, Vysya and Sudra - was prevalent. The Brahmins were the privileged section of the society and they were given land grants by the kings. The Kshatriyas were the ruling class. The Vysyas were mainly traders. Hiuen Tsang mentions that the Sudras practiced agriculture. There existed many sub castes. The position of women was not satisfactory. The institution of Swyamvara (the choice of choosing her husband) had declined. Remarriage of widows was not permitted, particularly among the higher castes. The system of dowry had also become common. The practice of sati was also prevalent. Hiuen Tsang mentions three ways of disposal of the dead - cremation, water burial and exposure in the woods.
The trade and commerce had declined during Harsha's period. This is evident from the decline of trade centres, less number of coins, and slow activities of merchant guilds. The decline of trade in turn affected the handicrafts industry and agriculture. Since there was no large scale demand for goods, the farmers began to produce only in a limited way. This led to the rise of self-sufficient village economy. In short, there was a sharp economic decline as compared to the economy of the Gupta period.
The art and architecture of Harsha's period are very few and mostly followed the Gupta style. Hiuen Tsang describes the glory of the monastery with many storeys built by Harsha at Nalanda. He also speaks of a copper statue of Buddha with eight feet in height.
The brick temple of Lakshmana at Sirpur with its rich architecture is assigned to the period of Harsha.
Harsha was a great patron of learning. His biographer Banabhatta adorned his royal court. Besides Harshacharita, he wroteKadambari. Other literary figures in Harsha's court were Matanga Divakara and the famous Barthrihari, who was the poet, philosopher and grammarian. Harsha himself authored three plays -
Ratnavali, Priyadarsika and Nagananda. Harsha patronised the Nalanda University by his liberal endowments. It attained international reputation as a centre of learning during his reign. Hiuen Tsang visited the Nalanda University and remained as a student for some time.