No such column was present.

-I deactivated and activated the feature multiple times (restarted the server, reset iis as well) but no result. -I did not check with Powershell but in SP Manager, the feature was shown as activated in the site collection. -I am using Standard version of SP.

Thanks @sbc111 for the reply. I checked with SP manager and the Column 'Document Id' was not found. Also the eventReceiver 'Document ID Generator' was not present. so, does it mean the feature was not properly deployed (but the feature is shown as activated) ?

@PerJakobsen: Thanks for the reply. I waited more than 2 hours, still the column was not added.

the column is present in the freshly created site collection.(ie the site coll created after the timer jobs viz Document ID assignment job, Document ID enable/disable job were run)