The Saka Calendar is a lunisolar calendar used in India and several Southeast Asian countries. It is based on the cycles of the moon and the sun, making it a hybrid system that aligns with both lunar months and solar years. The calendar typically starts in the month of Chaitra, which usually falls in March or April. The Saka Calendar is significant for cultural and religious events, including festivals and agricultural activities. It is also used by the Indian government for official purposes. The calendar is often associated with the Saka Era, which began in 78 AD, marking its historical importance in Indian chronology.