| Year | Detail |
| 1968 |
Mr. Fakir Chand Kohli brings together a team to create demand for downstream computer services in India. |
| 1971 |
Won the first external contract in Iran to build inventory and stock control systems. |
| 1973 |
TCS won the first offshore delivery project to convert hospital accounting to Burroughs small systems COBOL. |
| 1979 |
TCS established its first sales office in New York, U.S. |
| 1981 |
TCS sets up the first research center TRDDC in Pune. |
| 1982 |
TCS forays into software. |
| 1989 |
TCS signs a project for $10 million with Swiss Securities Clearing Corporation. |
| 2002 |
TCS signs a project for $100 million with GE medical systems. |
| 2004 |
TCS debuts at the National Stock Exchange and Bombay Stock Exchange at a valuation of $1 bn. |
| 2006 |
The company launches a co-innovation network to support startups and solve customer challenges. |
| 2007 |
TCS signs a project for $1 billion deal. |
| 2009 |
The company began a cloud-based business model to provide services to life insurance companies in the U.K. |
| 2011 |
TCS creates iON to extend cloud-based services to SMEs. |
| 2017 |
The company announces the largest-ever buyback in the history of Indian capital markets. |
| 2022 |
TCS generated highest highest-ever revenue of $25.7 billion in a year. |