A STUDY ON CUSTOMER SATISFACTION LEVELS BETWEEN JIO AND VI USERS IN HYDERABAD REGION. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 2, p. 2340–2349, 2025. DOI: 10.62643/ijerst.2025.v21.i2.pp2340-2349. Disponível em: https://ijerst.org/index.php/ijerst/article/view/1049. Acesso em: 16 jun. 2026.