Discovering Chennai is a timeless journey, a journey filled with treasures, temples, shrines, forts and palaces. This is the “Gateway of South India” and its time that we take you through this journey. Chennai, also known as Madras, one of the four major metropolitan cities of India, is the capital of the southeastern state of Tamil Nadu. The exotic state is famous for its cutworks in the temples, coconut fringes, and silk saris. More.