National Highway 45B is located in India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. It runs from starting at NH 45

National Highway 45 (India)

Grand Southern Trunk Road or National Highway 45 is one of the busiest National Highways in Southern India with a total length of . The highway starts from Kathipara junction in Guindy, a very busy confluence of five roads in southern Chennai and extends up to Theni. It connects Chennai to its...

 in Trichy and runs southwards to the port town of Tuticorin where it meets NH 7A

National Highway 7A (India)

National Highway 7A is located in India. It is a runs for a smaller distance connecting Palayamkottai in Tirunelveli with port city Thoothukudi in Tamil Nadu. The distance between these cites is ....

. The distance of 131 km (81.4 mi) between Trichy and Madurai

Madurai

Madurai is the third largest city in the Indian state of Tamil Nadu and one of the oldest continuously inhabited cities in the world. It served as the capital city of the Pandyan Kingdom. It is the administrative headquarters of Madurai District and is famous for its temples built by Pandyan and...

 is widened into four lanes and the project is completed on May 2010. The widening of the remaining 128 km (79.5 mi) highway from Madurai

Madurai

Madurai is the third largest city in the Indian state of Tamil Nadu and one of the oldest continuously inhabited cities in the world. It served as the capital city of the Pandyan Kingdom. It is the administrative headquarters of Madurai District and is famous for its temples built by Pandyan and...

 to Thoothukudi

Thoothukudi

Thoothukudi , also known as Tuticorin, is a port city and a Municipal Corporation in Thoothukudi district of the Indian state of Tamil Nadu. Thoothukudi is the headquarters of Thoothukudi District....

 is also underway by Madhucon Projects Ltd. and SREI - Madhucon granites Ltd. The total length of this highway is 252 km (156.6 mi) from Trichy to Tuticorin.

Route

Trichy, Viralimalai

Viralimalai

Viralimalai is a developing town in Tamil Nadu, India located 30 km From Tiruchirapalli. Altitude: 137m. population:36,866.The famous Lord Shanmuganathar temple is situated on the top of the granite hill at Viralimalai. The temple was once a renowned seat of the Bharatanatyam dance form and...

, Tovarankurichi, Melur

Melur

Melur is a town and a municipality in the Madurai district in the Indian state of Tamil Nadu. Melur is called Thaikramam . It is the biggest taluk within the Madurai District....

, Madurai

Madurai

Madurai is the third largest city in the Indian state of Tamil Nadu and one of the oldest continuously inhabited cities in the world. It served as the capital city of the Pandyan Kingdom. It is the administrative headquarters of Madurai District and is famous for its temples built by Pandyan and...

, Kariapatti

Kariapatti

Kariapatti is a panchayat town near Aruppukottai in Virudhunagar district in the Indian state of Tamil Nadu.It has one engineering college nearby, and a big industry TVS is functioning here.-Demographics:...

, Aruppukottai, Pandalkudi, Kottur, Ettaiyapuram, Eppodumvenran, Kurukluchalai and Tuticorin.