My mac is not able to boot after internet recovery

Hi I Own an i mac27 inch which i bought in year 2011. Recently it showed some disc errors and got crashed with a blue screen. I was not able to boot it in a safe mode and had to remove my data via a thunderbolt cable. After removing the data i formatted the hard drive with mac format thinking that would remove the bad sectors. But I realized it wont even start up again in a recovery mode. So i tried to boot it via a bootable USB drive. Now When i press Command+R i get only two options (1. Bootable OSX Drive, 2.Internet connection) None of the options are of any help. Any suggestions??

Hello nachi777,
Thanks for using Apple Support Communities.
From your post it looks like you are trying to reformat your hard drive, but are unable to boot into recovery. Since you have a newer iMac, you should be able to boot to internet recovery. Booting to internet recovery occurs automatically if your startup drive has an issue. If you are seeing boot drive options when starting up, then you may just be holding down the option key on the keyboard. Both options you do see to boot from, should be able to help in reformatting your hard drive.
OS X: About OS X Recovery - Apple Support
Take care,
Alex H.

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