Just to start 50,000Rs is about 1,125USD. Most readers here are in the US.
Really there are not any HUGE differences between AMD and Intel, but I cannot go into details because I am Intel user and have never researched into AMD.
With that said AMD usally provides similar but not on par performance to Intel at a lower price. But with your budget you should be able to build a good Intel or AMD system. Keep in mind I dont know if there are price differences on hardware in your country compaired to the US.
Here is a tool that will help you compare the performance of each brand.
CPU Comparison Tool
Find some CPU's from each company that are within your price range and use the tool above to see if they have the performance level you want to get. You did not mention other system parts so keep in mind prices for your other parts: PSU, Motherboard, RAM, Hard Drive, CD Drives, Heatsink/Fans, and Case.
Hope this helps, good luck.