Why Upper Circuits are different for IPOs stocks?

Why there is a difference in UC for Vishal Mega Mart, Sai Life and Mobikwik? Vishal had 10% circuit on the day of listing and today as well whereas Sai Life and Mobikwik has 20% circuit? Can anyone explain this rule or share the official link of this rule? I tried Googling and using GPT but was unsuccessful at it.