Got a quote today as I'm fed up of searching a good quad-core laptop within 100k, hope it will help. It may not be the best one, but good enough to be used. Its taken from a store located in Dubai Plaza, Rawalpindi (After going through couple of stores).
Core i5 6500 (22,500Rs)
Gigabyte B8S P3H Motherboard (9,800Rs)
8GB DDR3 Ram (6,200Rs)
1TB HD (5,500Rs)
SSD 128GB (6,800Rs) / Used SSD 128 GB (2,500Rs)
Asus GTX 1050 Ti 4GB (22,000Rs)
CoolerMaster N400 Casing (6,000Rs)
Corsair CX430 Power Supply (5,000Rs)
Total = 83,000Rs
Can be reduced to 80 or even less with following changes:
with GTX 1050 2GB which is of 16,400Rs
with i5 4460 which is of 19,800Rs
or simply with a used SSD
if you want to include cost of monitor/keyboard/mouse within the same range, then you can get a Used GTX 750 for 7,800Rs. also, you can drop SSD and get a Hybrid HD of 8,000Rs. Moreover, if you're using anything less than 1050, you can also reduce the cost of cool casing and power supply and get the whole bundle around (4,000Rs).
You can easily get a used monitor (8,000Rs and 2,000Rs for mouse and keyboard) out of it then.