Kolukkumalai Tent Stay Kolukkumalai is a mountain in the Western Ghats in the Indian state of Tamil Nadu. It is renowned for being home to one of the highest tea plantations in the world, as well as for its stunning views of the surrounding landscapes.The Kolukkumalai Tea Estate is famous for producing high-quality orthodox tea. The estate is located at an elevation of about 8,000 feet (2,400 meters) above sea level, making it one of the highest tea plantations globally. The cool climate and elevation contribute to the unique flavor profile of the tea grown here.