National Highway 66 (India) is one of the longest national highway in India. It connects Panvel to Kanyakumari and criss-crosses through Alappuzha city centre. The construction of the Alappuzha Bypass, to route the national highway around city centers between Kommady and Kalarkode, is underway. NH 66 connects Alappuzha city to other major cities like Mumbai, Udupi, Mangalore, Kannur, Kozhikode, Ernakulam, Kollam, and Trivandrum. There is a plan to upgrade SH 11 to national highway to help connect Alappuzha to Kodaikanal as part of promoting coastal-hill tourism project.