Apple genius Bar declared my macbook logic board is Dead. So After bit of research on internet I found this method of baking macbook pro mid 2012 13" faulty logic board in oven for 7 minutes under 180C temperature fixed my problem, so I hope this will help you to resolve your problems too.
You need
set of weird Screw Drivers to open macbook
Nail Polish remover to remove old thermal compound
Thermal Compound to apply after bake it.
and some patient on you. lol
Disclaimer: try it in your own risk. Don't try If your macbook is still under warranty. This will void your warranty.
Note: I tried at home after looking video so I though I'll post it here so you may try as well.