Telecommunications as a sector of the economy is now an important part of the economic growth and digital connectivity, particularly in India where rapid changes in technology and high competition have transformed the sector. Customer satisfaction in this environment is a major contributor of customer retention, customer loyalty and business success in the long term. This paper gives an in-depth examination of consumer satisfaction within the telecom sector through the lens of the major theoretical frameworks of Expectation-Confirmation Theory (ECT), SERVQUAL, Technology Acceptance Model (TAM), Kano Model and Customer Loyalty Theory, which describe the role of expectation, perceived quality of service, and use of technology in shaping the perception of the customer. The study also brings out key drivers of satisfaction which include quality of service, pricing policies, reliability of the network, technological advancement, and emotional significance. As consumers become more consumer aware and the switching costs are low, telecom providers have to be customer-centric, enhance customer service delivery and come with competitive pricing as customer expectations change. The paper concludes that customer satisfaction is a multi-dimensional construct that is dependent on service delivery as well as perceived value and that continuous quality and innovation is the key to customer loyalty and continued growth in the fiercely competitive telecommunications industry.