Ok....around 25 to 30 thousand rs(1 dollar=60rs).....
I believe thats around £300 so I have an AMD build here for you :http://uk.pcpartpicker.com/user/heloooo/saved/zCsmP6
CPU AMD A10-6800K 4.1GHz Quad-Core £90.53
Motherboard Asus F2A85-M PRO Micro ATX FM2 £58.79
Memory Patriot Signature 8GB (2 x 4GB) DDR3-1600 £52.98
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM £38.70
Case Zalman Z3 Plus ATX Mid Tower £31.56
Power Supply EVGA 500W ATX12V / EPS12V £31.23
The CPU is actually an APU so you wont need to buy a graphics card just yet but you can upgrade later in the future.
This build doesnt include an operating system as that would reduce the budget so I'm guessing you already have one or that you can use a free operating system Steam OS until you have enough money for a Windows OS.