Conceding the importance of his wife, Chandragupta issued gold coins in the joint names of himself, his queent Kumaradevi and the Lichchhavi nation. Emboldened by his success he establish a new era. The Gupta which was used in parts of India for several centuries to come.
In all likelihood, the region of Chandragupta I ended about 335 A.D. Even his son was careful to describe himself as the son of the daughter of Lichchhavi. There is some dispute regarding his succession since a few gold coins have been found in the name of Kacha. It is generally held that his name is Samudragupta.
During Samudragupta's reign the Gupta empire became one of the largest in the East. Its fluence spread and close ties were established with many other stages. Not without reason did the court poet Harisena writes his eulogyof the valour and might of his king, who, in the words of the inscrption, subdued the world. This assessment made by the court poet of old has considerable influence on many modern scholars whotend to idealise Samudragupta and described him as did Vincent A. Smith as the (as the Indian Nepolian) an outstanding individual possessed of remarkable qualities.
By the close of Samudragupta careers his empire extended in the north to the base of them mountains. Excluding Kashmir, probably the eastern limit was the Brahamaputra which the Narmada may be regarded as the frontior in the south. And in the west, the Jamuna and Chambal rivers marked the limits of his empire, Nevertheless, various tribal states in the Punjab and Malwa powers Tributes and homage were paid by the rulers of five frontier kingdoms - Samatata (delta of the Brahamaputra), Davaka (Possibly eastern Bengal), Kamarupa (equivalent to Assam), Kartripura (probably Kumaon and Gharwal) and Nepal.
Apart from the vastness of his kingdom, Samudragupta received homage from a handful of foreign kings. The Kushans princes of the North-West ruled in peach beyond. The Indus basin also, friendly relations were maintained with the King Mahendra of Ceylon who had built a splendid monestary at Bodh Gaya after obtaining the permission of Samudragupta.
Samudragupta was a man of exceptional abilities and unusual varied gifts - warrior, statesman, general, poet and musician, philanthropist, he was all in one. As a patron of arts and letters, he epitomized the spirit of his age. Coins and inscription of Gupta period bear testimony to his "versatile talents and ' Indefatigable energy".