Tata Consultancy Services (TCS), like many IT services and consulting firms, hires Data Analysts to help clients make sense of their data and turn it into actionable insights. In TCS, a Data Analyst may be responsible for gathering and interpreting data, analyzing results, and reporting the findings back to the relevant members of the business. They might use statistical tools to interpret data sets and prepare reports. Other duties could include using data visualization tools to present data, creating dashboards, or developing predictive models. The exact nature of the role can vary depending on the specific project and client they are working with.