Question

why is the Gupta age often refer to as a classical age in the sphere of cultural development

Answer 1

The period of the rule of the Gupta Empire was a Golden Age of India. There was development in all fields. The development in art found expression in magnificent architecture, sculpture and painting. There was a growth of literature. Kalidasa, Vishnu Sharma, Aryabhata, Varahamihira and Vatsyayana  were great scholars of the period. There was great advancement in the academic field. Indian culture was at its peak of refinement. The peace and prosperity under the Gupta rule enabled the pursuit of scientific and artistic endeavors. The Guptas performed  Vedic sacrifices to legitimize their rule and also patronized Buddhism. Strong trade ties with the nearby kingdoms and regions in Burma, Sri Lanka, and Indochina made the region an important cultural centre.

Answer 2

because the religious sculpture and temple architecture produced during the period is similar to that of ancient Greece or Rome.Some of the most important works of Indian literature were either composed or finalized during the Gupta period. India's most significant playwright, Kalidasa, lived during the Gupta empire. Important religious scriptures such as the "Yoga Sutras" and some of "The Upanishads" were written during this era, and the epics known as "The Mahabharata" and "The Ramayana" reached their final forms. "The Mahabharata" is believed to be the longest epic poem in the entire world, and both epics are still fundamental texts in Hindu religious practice.