His rule spanned c.380--413/415 CE, during which the Gupta Empire achieved its zenith, art, architecture, and sculpture flourished, and the cultural development of ancient India reached its climax.
His rule spanned c.380--413/415 CE flourished.413/415 CE was art, architecture, and sculpture. The cultural development of ancient India reached its climax. The Gupta Empire achieved its zenith during 413/415 CE.