Date on which the trademark application was filed with TMO?

The trident (label) was applied on 01 December 1987.

Who is the trademark proprietor?

Trademark application was filed by OBEROI HOTELS PVT.

Trademark application is filed under which trademark class?

Trademark application has been filed under following classes.
33, 5

Trademark application is at what stage of trademark process?

As per IP India, trademark application is on the following stage:
Registered.

What is the Listed Application ID of the Trademark?

Listed application Id of The trident (label) is 481630.

Is the Trademark word, color or device mark?

The trident (label) is a WORD as per IP India data.