what are these types of tap called: ekashana behashana upvaas ayambil

In Jain philosophy, tap (austerity) is a fundamental practice aimed at purifying the soul by reducing karmic bondage. The types mentioned—ekashana, behashana, upvaas, and ayambil—refer to specific forms of fasting and dietary discipline. Ekashana involves fasting for one meal, while behashana extends fasting for two meals. Upvaas is a more rigorous fast, typically abstaining from food for an entire day. Ayambil is a unique form of austerity where one consumes only one meal a day, consisting of bland, simple food without spices or salt, emphasizing restraint and self-control. These practices help in controlling desires and passions, leading to spiritual progress by minimizing the influx of new karmas. They are part of the broader category of external austerities (bahya tapas) prescribed in Jain ethical conduct.