Answer

In Jain Dharma:

• Ekasana means eating only once in a day, in one sitting.
• Biyasana / Beasana means eating only twice in a day, in two sittings.

Explanation

• In Ekasana, a person takes food one time during the day and avoids eating again.
• In Biyasana, a person may eat two times during the day, but not more than that.

These are forms of Jain tap and self-discipline. They help reduce attachment to taste, control desires, and support spiritual focus.

Takeaway

Ekasana = one meal in one sitting.
Biyasana = two meals in two sittings.