Slowhatch PMed me today and he got the locations on the caps posted by Alen.
Cap 2 is Taj Bengal next to National Library, as the Pit Start of this leg.
Then cap 25 is shown a pieces of chili in Khari Baoli market in Old Delhi.
And caps 47, 51-53 is a sign called "Sarvodaya Bal Vidyalaya" for the wrestling Detour.