Trident and Oberoi seem to be the same, similar events and timing.
If so, two prong assault underway, taj and Oberoi.
If not, three pronged assault underway.
Possibly 4, with Nariman House reported involved
Explosions MIGHT be entry charges, might be other too.
...Trident Hotel, formerly known as the Oberoi, one of two hotels targeted...
So those two are one, as you correctly speculated.
The Trident and the Oberi are adjacent to one another.
Emergency meeting called by the Prime Minister per NDTV- intel saying this is international conspiracy. ( No idea what that may mean)