Jain dharmma "Chaudas" (ચૌદશ) ek pavitra tithi chhe je pratyek mahina na vad ane sud paksha ni chaudas tariqe aave chhe. Chaudas ne "Chaturdashi" pan kehvay chhe, kyare ke "biju" (બીજ) ek biji tithi chhe je mahina ni dusri tithi hoy chhe.

Toh, Chaudas ne biju kehvata nathi. "Bij" (બીજ) etle dusri tithi ane "Chaudas" etle chaudhmi tithi. Banne ek bijathi alag chhe:

• Bij (બીજ) = Dusri tithi (2nd day of lunar fortnight)
• Chaudas (ચૌદશ) = Chaudhmi tithi (14th day of lunar fortnight)

Jain dharmma Chaudas na divase vishesh vrat, upvas, ane pratikraman karvama aave chhe.