What is EPGSK in EPGSKC ?

EPGSKC was started as an ideal friendship of the four friends, named as E.Sai Tarun, P.Gireesh, G.Jai Raj, S.Likhith, K.Viswanadham.

Here, EPGS represents these four friends.

Source: https://epgsk.blogspot.com/p/about-epgsc.html