Reliance Infocomm — Didn't get my relieving letter.

Address:

Line No 3 Rahemat Nagar

Dear Sir/Maam
my Name Is Amir Khan employee code is
QS1467082
I worked as a MAST ENGINEER in Reliance Corporate IT Park limited on payroll of ikya human capital solution (Division of quess corp).
I resigned in Febraury but did not get my releaving letter.
I, m facing problem to join another company.kindly solve My Problem