Shatrunjay tap means doing Jain austerities (tap) with devotion to the holy Shatrunjaya (Palitana) tirth. In simple words: one undertakes fasts and other penances, keeps pure conduct, does yatra on Shatrunjaya if possible, and then completes/parna of the vow with reverence to Adishwar (Rishabhdev) Bhagwan.

Common ways people observe it

• Fasting types: upvaas, bevaarasi/ayambil, oli, etc.
• Daily restraints: samayik, pratikraman, japa of Navkar, chaityavandan, avoiding night‑eating.
• Yatra: climbing Shatrunjaya and/or doing the 1.5‑kos, 6‑kos, or 12‑kos parikrama when feasible.
• Parna: many complete their parna at Shatrunjaya on sacred days like Kartik Purnima, Chaitra Purnima, or Akshay Tritiya.

Traditions

• Both Shwetambar and Digambar Jains revere Shatrunjaya and observe tap dedicated to it. Specific counts, dates, or formats may vary by local sangh and guru‑pranita niyams, but the spiritual intent is the same: to conquer inner enemies (kashayas) through tapas and bhakti to the tirth.

For a brief overview of the tirth and its vrat‑bhav: