BENGALURU :India's largest IT firm Tata Consultancy Services has bagged a 550 million euro ($643.89 million) order from Scandinavian insurance firm Tryg, the company said on Tuesday, announcing its first mega deal this fiscal year. Mega deals, which are typically worth more than $500 million, are key revenue drivers for IT services companies. TCS, during the seven-year deal tenure, will leverage its suite of AI and cloud solutions across Tryg’s entire IT operations, the company said. India's $