gaming pc under 400$ or rs 25000

Solution
Here's an example of what you can get for $500 US.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($99.95 @ SuperBiiz)
Motherboard: ASRock B85 Anniversary ATX LGA1150 Motherboard ($56.70 @ SuperBiiz)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($59.98 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($44.10 @ SuperBiiz)
Video Card: MSI GeForce GTX 960 2GB Video Card ($184.99 @ SuperBiiz)
Case: Deepcool TESSERACT BF ATX Mid Tower Case ($25.99 @ Newegg)
Power Supply: Antec 450W ATX Power Supply ($29.70 @ SuperBiiz)
Total: $501.41
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-24 05:22 EDT-0400
 
Solution