IPC aur BNS mein ACTUALLY kya fark hai?

Maine aaj class mein suna k ki IPC (Indian Penal Code) aur BNS (British North Western States) mein difference hai. Main socha k jo kuch bhi IPC mein hoga, woh BNS mein nahin hota. Par mere doston ne kaha k ye nhi hai sahi, IPC aur BNS dono mein kuch kuch alag-alag hain.

Mere doston ne kaha k IPC ka matlab hai Criminal Code, par BNS ki sab se pehle case 1860 ke Muddabad murder case ka hai, jaha par Muddabad ke kuch logon ne kutchi se bade logon ko mar diya tha. Mere doston ke kahne se lagta hai ki isse pata chalta hai ki IPC aur BNS mein ACTUALLY kya fark hai.