1. Ms. R. CHITHRA , 2. Dr. K. GOMATHY. “AN EMPIRICAL STUDY ON SERVICE DELIVERY EFFICIENCY AND PERFORMANCE EVALUATION OF PUBLIC AND PRIVATE TELECOMMUNICATION PROVIDERS IN VELLORE DISTRICT”. Journal of the Oriental Institute, ISSN:0030-5324 UGC CARE Group 1, vol. 74, no. 2, June 2025, pp. 203-14, doi:10.8224/journaloi.v74i2.812.