Biyasnu punya how much ?
Sorry, I can only answer questions related to Jainism.
If by “Biyasnu” you mean something in Jain Dharma, please note: Jain scriptures do not give numeric amounts of “how much” punya. Punya (merit) depends on your inner intention (bhāva), purity of conduct, right faith, and the way an act is done—not on a fixed count. Acts like kindness, restraint, fasting with humility, svādhyāya, dāna, and sevā bind punya when done with non‑attachment and compassion.
If “Biyasnu” is meant as a specific Jain practice (for example, a vrat on a particular tithi), tell me the exact Jain term or Gujarati/Sanskrit name so I can give the accurate, tradition‑based meaning next time.