Just posted after my disappointed experience...
Anyway, I went to Oberoi Street in the evening, and I found a [don't know the name] Hotel and I decided to visit it. But there is a problem; there is a security guard at the main entrance. I use the "bathroom trick" and ask the guard, and he cares. He then tells me to go to the basement to find another guard.
Once I've reached the basement, I meet another guard and he tells me the toilet. What surprised me is that there is no access to the hotel itself. I tried to find another door but failed due to security guard. Impossible, I just leave the hotel (all I find is just a dumbwaiter in there). I walked back to Oberoi Street feeling quite disappointed...
This is my first experience entered a hotel but failed to film the elevators.
For info: The elevators are using LCD screen on the hall fixtures, probably SJEC.
Well, maybe someday I will film that elevator if I'm lucky, but I highly ever doubt that.