Eras in India Kollam Era or Era of Parshuram Kollam Era (also known as Malayalam Era , Kollavarsham or Malayalam Calendar or Malabar Era or Nasrani Era ) is a solar and sidereal calendar used in Kerala, India. The origin of the calendar has been dated as 825 CE (Pothu Varsham) at Kollam (Quilon). It replaced the traditional Hindu calendar used widely elsewhere in India and is now prominently used in Kerala. All temple events, festivals and agricultural events in the state are still decided according to the dates in the Malayalam calendar. See Parshuram Era for cycles of 1000 Years There are two versions of calendars. The Malabar calendar is generally in the Northern part of Kerala - Kozhikode (or Calicut); and the Travancore or Kollam(or Quilon) calendar (Kollavarsham) is used in the Southern part of Kerala. Incidentally, there are two versions of th...