DTVSV - non receipt of form 5

Sir, based on the form 3, we have settled the amount in form 4, but till today we have not received the form 5, in the portal it says that " awaiting sighed form 5 from CT". so, is there a limitation period prescribed in DTVSV, which says that if form 5 is not received by so and so date, then it is deemed to be received. kindly enlighten .