Answer

In Jain Dharma, Siddhi Tap does not have a “full form” as an acronym.

Siddhi Tap means a spiritually powerful Jain tapasya performed with devotion, discipline, fasting, and worship, especially connected with the reverence of Siddha Bhagwan and the path toward spiritual purification.

Explanation

The word can be understood as:

• Siddhi = spiritual accomplishment, perfection, or liberation-related attainment
• Tap = austerity, penance, or spiritual discipline

So, Siddhi Tap means a tapasya undertaken for inner purification and spiritual progress.

Takeaway

Siddhi Tap is not a short form; it is the name of a Jain tapasya. It represents devotion, self-control, and the aspiration to move closer to the qualities of Siddha Bhagwan.