IT giant TCS is believed to be undertaking a significant performance-related restructuring of its workforce, which may also lead to some employees being asked to leave the company. This restructuring process will effect onsite and offsite positions and also they have issued offer letters for 55000 candidates for this fiscal year. This restructuring process would affect middle to senior level positions including the employees who ever working at vendors place. Experts say that it will lead to attrition. At the end of last quarter ended September 30, 2014, TCS had a total headcount of 3,13,757 following a gross employee addition of over 20,000 people.