In this methodology, I will be conducting a comparative analysis of four major players in the Telecom Industry in India, namely Airtel, Jio, BSNL, and Vodafone Idea. The primary objective of this analysis is to examine the extent to which these companies have diversified beyond their core telecommunications business and evaluate the success of their diversification strategies.

To begin with, I will explore the various diversification initiatives undertaken by each of these companies and assess the degree to which they have been able to leverage their existing capabilities and resources to enter new markets and industries. This will involve a detailed examination of their product and service offerings, as well as their partnerships and collaborations with other companies.

Furthermore, I will investigate whether telecommunications remains the primary focus of these companies or if they have shifted their attention to other areas of business. This will involve an analysis of their revenue streams and market share in different industries, as well as their investment and expansion plans for the future.

Finally, I will evaluate the success of their diversification strategies by examining their financial performance, customer satisfaction levels, and overall market position. This will involve a comparative analysis of key performance indicators such as revenue growth, profitability, and market share, as well as a review of customer feedback and industry reports.

Overall, this methodology aims to provide a comprehensive understanding of the diversification strategies of these four telecom companies in India and assess their success in expanding beyond their core business.