Hi abhinaykumar92,

I would suggest you to reinstall the Video card driver on the system to fix the issue with the shutdown.

Please enter your service tag # on the link below, select the OS, then download the video card driver from Video section onto the system and install it.

http://dell.to/18r60nI

Also, you may try shutting down the system by following the steps below and check if the battery still drains out.

Start > Run > type ‘cmd’ and in the command prompt box type "shutdown -s" 

Please let me know if this helps.

Hi abhinaykumar92,

Please use the steps to restore the system to factory state and check if it fixes the issue.

http://dell.to/1DDUB73

Note : Please backup all the files on the system before proceeding to restore the system to factory state.