Chennai, the capital of Tamil Nadu state in southern India, bordering the Bay of Bengal, is the fourth largest city in India. As a historical and cultural city, Chennai has a rich cultural heritage, such as ancient temples and colonial buildings. It is also an important commercial, industrial and technological center of India with well-developed automobile, software and film industries. Chennai has a hot and humid climate and the best season to visit is winter. Its beaches, food and warm folk attract tourists from all over the world to explore.