Unable to answer "This shop has been vacant. What’s here now?" – Chennai Buhari Authentic Indian Food – https://osm.org/node/2225535975 via StreetComplete 62.2:

Taqueria is adjacent to the barbershop. There is no business in between them l. The taqueria door doesn't have a house number on it so perhaps it is number 808?

Attached photo(s):
https://streetcomplete.app/p/337841.jpg