NASSCOM, the chamber of commerce and “voice” of the IT software and services industry in India, today released the rankings of the top 20 IT-ITES employers in India for FY 06-07. The top 20 companies collectively employ over 500,000 people of the 1.6 million employed directly in the industry. The rankings are based on the India-based headcount of firms with IT-ITES operations in India, as reported to NASSCOM in its annual survey. As per the rankings, TCS is the leader followed by Infosys Technologies and Wipro Technologies.