Nigod Nivaran Tap ki avadhi desh-vichar par nirbhar hoti hai. Do-mukh dharma mein alag-alag prathaen hain:

• Aksar kuch samudaay mein Nigod Nivaran Tap 8 din (Ashtahnika) ke roop mein hota hai. Yah Paryushan ke samay ya anya utsavon ke dauran kiya jaata hai. ( jainknowledge.com)
• Kuch Shwetambar parivaaron ya sanghon mein Nigod Nivaran Tap 31 din tak chalta hai. Is me kai tarah ki upvas/ekashnaon ki vyavastha hoti hai. ( jainknowledge.com)

Saral arth yeh hai ki Nigod Nivaran Tap ki nishchit tareekh sabhi samudayon ke liye ek samaan nahi hai; aapke guru ya sthaniya sangh ki parampara ke hisab se alag ho sakti hai.

Aap apne samudaay ki vishesh reeti-se reeti jaankari ke liye apne guru ya sthanakvasi/shwetambar-darshan walon se sampark karein.