Need Laptop Recommendation for My Use(Detailed Requirement Below)

Want it for general purpose along with some coding. I do not game so not looking for a gaming laptop. No GPU.

Purpose - General internet browsing, watching YouTube, Coding on VSCode, running linux VM for learning cybersecurity and pentesting.

Budget - Under 1L after card discounts. No exchange offers.

Need-

Immaculate battery life

Sturdy build quality(Have heard about MIL-STD-810H certification for durability so prefer if the laptop has it)

Good display 2K resolution or more(Not completely sure about OLED or IPS)

Good after sales support and service network

From a reliable brand - Don't want MSI, gigabyte or less known brands.

Processor(Core ultra 5 or above, again not sure about difference between i7 series processors and these ultra series processors)

RAM - 16-32GB

SSD - 1 TB preferred but can settle for 512GB if it's the best laptop available in my budget

I have did some research using Claude. Not sure about going with it. I need human recommendations.