Abey Culpable Homicide ya Culpable Homicide Not Amounting to Murder, kya hai different?

Yaar samajh nahi aaya, please help! In dono sections IPC mein, "culpable homicide" word use hua hai, lekin kya difference hai unke beech?

Mujhe lagta hai dono kaa object hai wahi, victim ki murder, aur dono kaa punishment bhi sahi hai, imprisonment for life. Lekin ab maine read kiya hai kuch article, jahaan iska lagta hai ki Culpable Homicide Not Amounting to Murder wala punishment hi nahi hota hai, koi bhi na, imprisonment for 10 saal ke liye. Phir maine dusri jagah padha hai, wahaan iska kaha hai ki punishment bhi imprisonment for life hoti hai.