The consortium also includes Tata Group's domestic gear company Tejas Networks, which will supply radio access networks (RAN) equipment, and C-DOT. The contract will cover the deployment of 4G networks in all 22 circles of India and is expected to be completed over a period of five years.

The win is a major coup for TCS, which has been facing stiff competition from rivals like Infosys and Wipro in the telecom space. The contract will help TCS to strengthen its foothold in the Indian telecom market and expand its customer base. BSNL is the largest state-owned telecom company in India and has been struggling to compete with private players like Airtel and Jio. The company has been losing market share in recent years and is looking to upgrade its network to 4G in order to compete effectively.

The 4G network will help BSNL to offer faster data speeds and better services to its customers. The company is also planning to launch a number of new products and services in the coming months, which will help it to attract new customers and retain existing ones.

The win is a positive sign for the Indian IT industry, which has been facing headwinds in recent months due to the global economic slowdown. The contract will help to boost the morale of the industry and create jobs in the country.