Source: Profile of a Little Known Tribe by Asim Maitra (Mittal Publications, 1993), Page 19
A quick glance show, maximum numbers of rivers/rivulets are between Deban to Shidi. After that there are relatively lesser numbers. Just near Chaukan Pass there is a river called Mogulo. I wish to walk there some day.
I counted 18 rivers on the right side of Yimaphalo (Nao Dihing) and 18 on the left. And one directly originates from the Chaukan Pass. How amazing!
And there are locations in the map. See the INDEX for other information.