Well my name was in the list at the time of booking and till very recently, but it disappeared from the latest one when the time for invoice came:(
Today I went to FBR and showed them the receipts of e-filing and hard copy filing of returns. They said that hard copy one has not been entered in the system yet and they opened the e-filing account and found that the return was stuck there for some empty field (though the system generated completed receipt).
Today that stuck e-return was re-filed and now my name will appear in Active Tax Payers list again but on April 15th, they said.