Admins are long-time reputed and knowledgable bloggers who also moderate the site in terms of deleting/restoring entries, adding newly introduced trains (more edit features are soon coming). The opinions of admins are generally implicitly trusted and respected by most people on this site.
Sir, you are welcome back as admin. Since you were inactive for a long time, we felt you had moved on and were too busy to login here. That's why your name was removed from the list (so as to keep the "active" admin list short).
Thanks for everyone's contributions.