Thirumangalam lies on the border of Anna Nagar

Anna Nagar

Anna Nagar , formely known as Naduvakkarai, is a neighbourhood in the metropolitan city of Chennai, India. Named after the Tamil leader C. N. Annadurai, it is located in the north-western part of Chennai and forms a part of Egmore-Nungambakkam taluk...

 in Chennai

Chennai

Chennai , formerly known as Madras or Madarasapatinam , is the capital city of the Indian state of Tamil Nadu, located on the Coromandel Coast off the Bay of Bengal. Chennai is the fourth most populous metropolitan area and the sixth most populous city in India...

. Thirumangalam, and Mogappair

Mogappair

Mogappair is a fast-developing residential neighborhood in north-western Chennai, India. This suburb located west of the Jawaharlal Nehru Road is part of the Ambattur Municipality...

 are on the border of Anna Nagar and some times claimed as Anna nagar to enjoy the Real estate value of neighboring Anna Nagar and Anna Nagar West. The original Thirumangalam village lies on the boundary of Anna Nagar and Anna Nagar West

Anna Nagar West

Anna Nagar West is a township in Chennai, India....

. The old Thirumaniamman Temple is situated here.