Hp Elitebooks, Dell Latitudes and Lenovo Thinkpads.
These will burn a hole in one's pocket so buying used is the best option in Pakistan.
Written on my HP elitebook 840, core i7 4th gen, Amd Graphics, Touchscreen. 1.5 (hardcore gaming on full brightness) - 4 hours (Microsoft Solitaire + 8 Ball + Notes app on a university day at comfortable brightness level with battery saver) of battery life. (68% of original Battery capacity remaining, almost 600 charge cycles done).
It has taken a fall in a common backpack (not designed for a laptop) when the front tyre of bike went in a ditch and me and 2 of my friends' weight was on the bag yet now damage done.