Nsdl E-Governance Infrastructure — SGB bonds not transferred to CDSL inspite of 5 months of follow up

I hold SGB bonds in IDBI demat but had requested for closure of IDBI demat account and transfer to SBICAP demat buy till date inspite of rigorous follow up with IDBI nothing has been done to transfer my bonds.SGB fetch half yearly interest and I have nothing showing in my demat till date.Further if I feel like selling the bonds I can’t since they are nit reflecting in either of my accounts.
Kindly ensure the transfer at the earliest.