I bought the Samsung Galaxy S3 from a exclusive store in Hyderabad for Rs. 31, 000. I’ve been using this phone for almost three years now and it does not give any major problems as of now. Only the battery back up has reduced due to prolonged usage.
One thing bad is that it has stopped receiving the latest Android updates and if you really want the latest version you will have to root the phone and install it manually. Overall, it is a good phone with excellent hardware components especially the camera is the best in its class- i.e below 8 Megapixels. I would recommend Samsung phones if you want a reliable phone with decent specifications.