South Extension is often termed as New Delhi South Extension (NDSE known as Posh and Tony, the neighborhood is considered to be one of the wealthier areas in Delhi. It is also known to be the home to some of the wealthiest business families in Delhi. Situated on the Ring Road, It is divided into two parts - South Extension I and South Extension II. South Extension is also known to be one of Delhi's most high-end busy markets. There are many institutes (Coaching centers, Language institutes, Computer institutes, etc.) in the locality.