Yellanahalli is a small town located in the Nilgiris District of Tamil NaduState, Southern India and is a Revenue Village of Coonoor taluk. It is 10 km beyond Coonoor and 8 km before Ooty on the Coonoor-Ooty NH 67. It houses the Needle Industries India the manufacturers of the internationally branded ‘Pony Needles’.[3] Near Yellanahalli are another two villages called Ketti and Aruvankadu. The Ketti Valley is located to the south-west of Yellanahalli and is also sometimes referred to as the Switzerland of Southern India due to the year-round climatic conditions which do not fall into any extremes, during summer and winter.[4]