Complex sentence: It is always known for being a smart and affluent suburb and also one of the most expensive area in Chennai, but more recently, in addition to being a popular residential area, Anna Nagar has also become a busy commercial and educational center.
Split into simpler sentences: It is always known for being a sharp and affluent suburb and also one of the most expensive areas in Chennai. Recently, in addition to being a popular residential area, Anna Nagar has also become a busy commercial and educational center.