Rto Koramangala Bangalore — RC book has not been received yet

Hi
Myself Nagaraju, my vehicle no:KA01JJ6125.
I have not received my RC book hard copy yet. It has been more than 1.5 years since I have purchased my vehicle. Currently I moved to my home city because of covid situation. Can you please let me what is the procedure for getting my hard copy of RC book

Thank you
Nagaraju S