Well I think we are to believe shivji ne galat decide karne ka punish kia...like as senior most naagin she trusted cheels to enter tample where all naag naagins are there and in result all naag naagins got killed by cheels...so as their leader then she was responsible for their deaths...either ye reason tha or it was not at all a punishment but some grand scheme of bholenath taki ek second chance mile unhe to make adi naagin-Cheel prince relationship happen...đBut wouldn't that be injustice from the lord? Aakesh destroyed her clan! Killed her supposed lover! So, what else was expected from her? To still forgive him?
This curse itself has a lot of plot holes am telling you! They never clarified why was she cursed in the first place! She never did anything wrong as nageshwari! Aakesh deserved to be punished that way, I feel! At least from what was shown to us!