In context of overlay "Buildings" – T-Hub (Building) – way/211078709 via StreetComplete 62.2:

T-hub has shifted from here. It is now an academic building.

"This is not a proper cafe. Its an inhouse dining hall area for the residential students."
POI name: Dining Hall
POI types: amenity-cafe cuisine-indian
OSM data version: 2021-05-29T07:59:45Z
#organicmaps

"This place does not exist. Also in the title it says that it is proposed, which can't be verified"
The place has gone or never existed. This is an auto-generated note from OMaps application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: proposedsite science gallery
POI types: building
OSM data version: 2021-05-29T07:59:45Z
#organicmaps