India-based GCCs lead global shift in tax operations, says Deloitte whitepaper; 76% handling cross-border functions India’s GCC ecosystem has rapidly expanded, with over 1,700 GCCs employing 1.9 million professionals and generating $64.6 billion in revenue as of 2024. The sector is projected to grow to $105 billion by 2030, housing more than 2,400 centres and employing 2.8 million people.