sentences:  It is an important junction and is the commercial centre of T Nagar.When the Long Lake on the western peripheral region of the old city was drained out and the area of T. Nagar was newly carved out of the existing neighborhood of Mambalam in 1923, a park was developed in the centre of the new locality intended to be a residential one.The park was named Panagal Park honouring the then Chief Minister of Madras, the Raja of Panagal.