Thanks AKS KYN GKP for the correct details.
Few months ago i traveled in coach C1. Basically, I saw the wrong seat mapping with 30 seats in other forum. So, I decided to publish the correct seat map for the public. I didn't know there were only 18 seats in the coach as we were traveling in seat numbers 4, 5, 6 and 7. Sorry for my mistake. But, off course, the seat map will provide the details of the seat position in the coach. Enjoy. :)