Multiple choice general knowledge What is the full form of TCS? Tata Corporate Services Tata Consultancy Service Tata Consultant Service Tata Consultancy Services Reveal answer Fill a bubble to check yourself D Correct answer Explanation TCS stands for Tata Consultancy Services, India's largest IT services company founded in 1968. The other options are incorrect variations - 'Consultancy' is the correct British spelling, and 'Services' is plural.