Polichalur was once a farm land and the backyard of the Chennai Airport. The church is dedicated to Mother Mary of Velankanni and well known called as “Polichalur Punitha Arokia Annai” or “Our Lady of Health - Polichalur”. The church has attracted many devotees in and around Polichalur, Pammal, Pallavaram and also from other parts of Chennai. The church is renowned for many miracles especially, for married couple who is expecting for their child.