Gic Housing Finance — closure of loans and handed over igr copy

Address:

Kolkata, West Bengal

Dear sir
My loan was completed in september 2019.
All papers were handed over in november but original deed was not handed over, instead they handed over igr.
Now i am running around with igr and department is unable to trace it.
I understand this is the responsibility of gichf.
Anyway, customer care is an non existent term in gichf.
What to do now?