List of National highways in tamil nadu

Tamil nadu has 24 NHs and covers 4,873 km as on 2010. In that tamil nadu shares NH with other state as listed below.
S.No State NH Number Places
1 Andhra Pradesh NH 205 Anantapur, Andhra Pradesh(360 km) - Chennai, Tamil naud(82 km)
2 NH 219 Anantapur, Andhra Pradesh(303 km) - Chennai, Tamil naud(22 km)
3 Kerala NH 47 Salem, Tamil naud- Kerala(416 km) - Kanyakumari, Tamil naud(224 km)
4 NH 49 Kochi, Kerala(150 km) - Dhanushkodi, Tamil naud(290 km)
5 NH 744(old NH 208) Kollam, Kerala(81 km) - Tirumangalam in Madurai, Tamil naud(125 km)
6 NH 220 Kollam, Kerala(210 km) - Theni, Tamil naud(55 km)
7 Karnataka NH 67 Gundlupet, Karnataka(50 km) - Nagapattinam, Tamil naud(550 km)
8 NH 207 Dobbaspet, Karnataka(50 km) - Hosur, Tamil naud(550 km)
9 NH 209 Bangalore, Karnataka(170 km) - Dindigul, Tamil naud(286 km)
10 Inter-state NH 4 Maharashtra 371 km - Karnataka 658 km - Andhra Pradesh 83 km - Tamil Nadu 133 km
12 NH 5 Odisha 488 km - Andhra Pradesh 1000 km - Tamil Nadu 45 km
12 NH 7 Uttar Pradesh 128 km - Madhya Pradesh: 504 km - Maharashtra 232 km - Telangana 504 km Andhra Pradesh 250 km - Karnataka: 125 km - Tamil Nadu: 627 km






S.No.NH No.RouteLength (km.)
14From Andhra Pradesh Border - Kanchipuram - Chennai123 km
25From Andhra Pradesh Border - Gummidipundi - Chennai45 km
37From Karnataka Border Hosur - Madurai - Kanyakumari627 km
47APalayamkottai - Vagaikulam - Tuticorin51 km
545Chennai - Trichy - Theni550 km
645AVilluppuram - Chidambaram - Nagappattinam147 km
745BTiruchirappalli - Madurai - Thoothukudi257 km
845CThanjavur - Neyveli - Vikravandi159 km
946Krishnagiri - Vellore - Ranipet148 km
1047Salem - Kochi - Kanyakumari363 km
1147BNagercoil - Aralvaymozhi - Kavalkinaru45 km
1249From Kerala Border Bodinayakkanur - Madurai - Dhanushkodi290 km
1366Krishnagiri - Tiruvannamalai - Puducherry208 km
1467Nagappattinam - Trichy - Gudalur up to Karnataka Border505 km
1568Salem - Attur - Ulundurpettai134 km
16205From Andhra Pradesh Border - Tiruvallur - Chennai82 km
17207Hosur up to Karnataka Border20 km
18209Dindigul - Sathyamangalam - Bannari up to Karnataka Border286 km
19210Trichy - Devakottai - Ramanathapuram160 km
20219From Andhra Pradesh Border to Krishnagiri22 km
21220From Kerala Border - Cumbum - Theni55 km
22226Perambalur - Tirupattur - Manamadurai241 km
23227Trichy - Gangaikondacholapuram - Chidambaram135 km
24234From A.P Border to Peranampattu - Vellore - Villupuram234 km