River Siruvani joins river Bhavani in the region between Kattekad football ground and Kayyeni campus. River Bhavani originates from Nilgiri Hills in the Western Ghats in Tamilnadu, flows into the silent Valley in Kerala and then again flows back into Tamilnadu. This river is a tributary of River Kaveri. It is also the second largest river in Tamilnadu. It joins River Kaveri, also known as Dakshin Ganga which originates from Talakaveri in the Brahmagiri hills and flows into the Bay of Bengal. The water in Siruvani river which has the essence of around seventy medicinal herbs is regarded as the tastiest water in Asia. Once you cross the Kayyeni bridge from the football ground, walk for another 350 metre to reach the Kayyeni camp. This camp consists of 15 acres of farm land lying close to the forest and its stream. This place was bought by a group of 20 nature lovers. This region lies in the beautiful Attapadi forest, which is a part of Nilgiri biosphere in Palakkad. It has many species of plants and wild animals.
There are also around 200 species of birds and butterflies here. Though Kayyeni is actually the name of the rare variety of crop grown here, the whole 15 acres of land has also come to be known as Kayyeni. Attapadi which is known as the heartland of the Adivasi is nestled between the Nilgiri Hills, the rain forests of Silent Valley National Park and the plains of Coimbatore.  The fertile land of Attapadi attracted people from other regions from Kerala and Tamilnadu who migrated here and later became the owners of the land.  The original inhabitants of the land were the Adivasi tribal groups called Irular, Muduvar, Kurumbar, Valayar and Thodar. Out of these five, only three tribal exist in Attapadi now. The region which was a dense forest once upon a time with its heavy rains and cool breeze has now been reduced to a dry region with dust storms, severe drought and scarcity of water. This desert like scenario must have driven them away from their homeland.