Answer

In the commonly described Siddhi Tap sequence, there are 36 upvas and 7 beyashna. Some traditions count the final break separately and describe it as 37 upvas and 8 parna, so the counting can vary a little by community. ( gujaratsamachar.com)

Explanation

A common way to understand Siddhi Tap is:

• 1 upvas, then 1 beyashna
• 2 upvas, then 1 beyashna
• 3 upvas, then 1 beyashna
• ...and so on up to 8 upvas

This is why many Jains describe it as 36 fasting days (upvas) and 7 beyashna days, with the last conclusion called parna. ( gujaratsamachar.com)

Spiritual Understanding

Siddhi Tap is considered a very powerful and disciplined tapa in Jain Dharma. The increasing sequence of fasting reflects steady self-control, purification, and devotion. ( starofmysore.com)

Takeaway

If you want the short answer: Siddhi Tap usually means 36 upvas and 7 beyashna, with the final parna counted separately in some traditions. ( gujaratsamachar.com)