AHEAD INTERNATIONAL JOURNAL OF RECENT RESEARCH REVIEW (AIJRRR) (www.aijrrr.com) Bangalore-560083, INDIA. Online ISSN: 2456-205X Impact Factor: 6.172 CERTIFICATE OF PUBLICATION This is to Certify that Mr./Mrs./Ms./Dr. Mr.M.Riaz Ahmed Mr.S.SyedAbudhahir has published research paper in " AHEAD International Journal of Recent Research Review (AIJRRR) peer reviewed and refereed journal, Volume- 5, Issue- 7, July 2020, pp. 1-7." Paper Title:- " "A STUDY ON CUSTOMER RETENTION STRATEGY IN A RETAIL OPTICAL STORE WITH REFERENCE TO AN OPTICAL STORE IN CHENNAI CITY” " Chief Editor Managing Editor