Finally, I got the solution.
My colleague who works as System Engineer helped me out.
He tried to open the hard disk and checked, the hard disk was fine but, the knob where we plunge in got destroyed.
I purchased a ‘Kingston SSD Enclosure’ case for my hard drive, now I can reuse my disk again.
Want to tell you, once we open our hard disk which is sealed you can’t reuse the case but we can see whether HD is ok or not.If HD is ok you can reuse and if destroyed last option is professional data recovery.
Hope it helps...