That I believe is Steve D in the red pullover....seems close to this...http://www.queensroyalsurreys.org.uk/ww2/burma/003.shtml
In the picture being held up I don't see the road on the east side of the hill which I believe is the main highway, nor the road that extends off to the west (left) to Dimapur. On most maps I have seen the road that goes north-south to the west (left) of F.S.D. etc. is not shown and the main highway goes down the east (right) side of the hill. It is almost certainly Kohima, but I don't see those roads. This is more typical of maps I have seen:
The map he's holding may be accurate, but I can't see the roads I expect to be prominent. It also shows some roads to the west (left) of garrison hill et. al. but these are way, way down below the ridge on the map I show, and on the map being held up the road on the hill looks like it is the same elevation as the road that cuts through D.I.S. and Jail Hill.
I will acknowledge that I don't know whether the map I show is accurate nor whether it omits smaller roads. It's just the map being held up does not seem to show certain roads I thought were there and shows others that are unfamiliar to me.
JR