Scam or fraud: Karvy Computershare Pvt. Ltd. — Dividend not credited in my demat A/C

Submitted by:  Somnath05

Complaint Details:
I have some share of ICIC Prudential Life Insurance Co. Ltd which i receive by applying IPO . I have my demat A/C in HDFC Bank through which i perform my trading . I raised my concern to the bank in which they replied
“Corporate Actions like splitting of shares /buy back offer/ disbursement of bonus / dividend etc. are executed by the respective company / registrar & transfer agent in coordination with the depository (NSDL / CDSL). ”
In this case my registrar company is Karvy Computershare Pvt. Ltd.
I tried to contact this company several times through the no bank provided. But they didn’t receive my call .
Could you please let me know how i could register my complain to get my dividend .