Colin Gulley submitted the Route:

"All AT hikers must manage this section of trail but few travel to all the high peaks along the way."
-The Maine Appalachian Trail Guide

Sandakphu - Phalut is a very popular trekking route in India (on the boarder with Nepal), which starts from Maneybhanjan & ends at Gorkhey. Another option is to go from Maneybhanjan to Sandakphu and back.  Both routes are about 60km.