Vikram Samvat known as the Vikrami or Bikrami calendar, is a Hindu calendar historically used in the Indian subcontinent and still used in several Indian states and Nepal. It is a lunisolar calendar,
The Jain monk Kalakacharya and the Saka king (Kalakacharya Katha manuscript, Chhatrapati Shivaji Maharaj Vastu Sangrahalaya, Mumbai)
Coin of Western Satrap ruler Damasena. The minting date, here 153 (100-50-3 in Brahmi script numerals) of the Saka era, therefore 231 CE, clearly appears behind the head of the king.