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National Highway 66 (India)(old numbering)


National Highway 66 (India)(old numbering)

National Highway 66 marker

National Highway 66
Route information
Length: 214 km (133 mi)
Major junctions
From: Pondicherry, Puducherry
To: Krishnagiri, Tamil Nadu
States: Tamil Nadu: 210 km (130 mi)
Puducherry: 4 km (2.5 mi)
Highway system
NH 65 NH 67

National Highway 66 (NH 66) is a National Highway in India. This is the main National Highway to connect Pondicherry with Krishnagiri. It starts from Indira Gandhi Square in Pondicherry and runs north west till Tindivanam in Villupuram district then runs westward till Uthangarai via Thiruvannamalai and then joins NH 46 at Krishnagiri. NH 46 starts from NH 7 which is at 1 km (0.62 mi) from the junction of NH 66. The total length runs to 214 km (133 mi).[1] [2]

The 38.61 km (23.99 mi) distance between Pondicherry and Tindivanam is widened into four lanes by Maytas - NCC Consortium.[3][4]


Pondicherry - Thiruchitrambalam - Kiliyanur - Tindivanam - Vallam - Gingee - Pennathur - Tiruvannamalai - Pachal - Chengam - Singarapettai - Uthangarai - Samalpatti - Mathur - Kannandahalli - Krishnagiri

See also


  1. ^
  2. ^
  3. ^ .:NHAI:.Completed Stretches on Golden Quadrilateral Dindivanam to Pondicherry widening
  4. ^

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