Route
NH 166E runs 332 km from Vijayapura, Karnataka to Chiplun, Maharashtra.
Crosses Karnataka and Maharashtra.
Through Vijayapura, Jath, Vita, Karad and Chiplun.
Why it matters
NH 166E is a branch of NH 166. In the national highway numbering used since 2010, a letter after the number marks a spur or link off the main route — this one runs Vijayapura to Chiplun, and it meets NH 166 along the way.