Which laptop is perfect and could work for 5-6 years

• Country:INDIA(jharkhand)
• Budget:53k inr , 556$
• Are you open to refurbs/used options?:absolute NO , but if getting best laptop at best condition than definetly YES
• Screen size:ANY
• Weight limit:ANY
• Purpose:Btech CSE and also working with Ai,full stack stuffs
• Form factor:STANDARD LAPTOP
• Intended usage:CSE ENGINEERING , With some Ai, full stack ,data engineering stuffs
• Desired battery life:4-5 HOURS or longer if good
• Please list, in order of most important to least important, the priority between Size, Weight, Performance, Battery life

1.Performance
2.Battery
3.Weight
4.Size

~Info/Requirements:I want to purchase Laptop OFFLINE STRICTLY, ALSO BIG NO TO MACBOOKS