Delay in sending PVR report to Railways

Dear Sir, I'm Dwipjit Saha.I qualified for a govt service in south eastern railways & verification request for the same was sent to District Magistrate dated 21/03/2016 .Verification in my local police station(D.I.B,BARASAT) was done on 25/07/16 & another part PVR done by Barrackpore police commissionerate on 3/10/16.Finally Those 02 verification was dane by Intelligence Bureau ,13Lord Sinha Road on 31/01/17.Now after obtaining the final report from Intelligence Bureau the VR section officials in Barasat DM office told me that your PVR will sent to Railways in a week or two.But today Im finding that they have againg sent my paper for caste status verification which the SP North 24 Pgs have already done during my first PVR.Its almost been a year my verification is going on & dont know how long it will go on like this. Plz tell me that how can i make it faster & is there any stipulated time period for completion of verification..bcz if they proceed in the snails pace it might take an infinite time...plz help how can i get the final report prepared faster...