Which era is used as the Indian National Calendar?

The Saka era, starting from 78 CE, is the basis for the official Indian national calendar.

Indian Chronology

UPSC Archival Analysis

The Vikrama era began in 58 BCE, the Saka era in 78 CE, the Gupta era in 320 CE, and the Kali era is reckoned from 3102 BCE.

Exam Year

1995

Evidence Source

ID: ANC_HIS_PMPG_1995_25 Ref: Standard Educational Reference