BNSS kehte hain kaha se aaya hai?

Maine kahi kahaan padha hai ki BNSS ki saari provision IPC mein hoti hai lekin kisse kisse wahaan mention na hota hai, phir kisse kisse wahaan se reference lene padta hai. Ismein confusion ho rahi hai kisse ka kya relation hai, aur abhi tak ismein confuse ho raha hoon. Kya meri padhai galati hai ya yehi system hai?

Kya BNSS IPC ke kya ek aur version hai ya phir IPC mein koi addendum? Mujhe lagta hai ki ismein koi connection hai IPC ke sath, lekin mujhe pata nahi kisse ka kya relation hai?