Date on which the trademark application was filed with TMO?

Roshni was applied on 19 June 2020.

Who is the trademark proprietor?

Trademark application was filed by TATA POWER DELHI DISTRIBUTION.

Trademark application is filed under which trademark class?

Trademark application has been filed under following classes.
40

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 Roshni is 4538209.

Who filed the trademark on behalf of the proprietor?

Trademark attorney of the Roshni is Abhishek Malhotra.

Is the Trademark word, color or device mark?

Roshni is a DEVICE as per IP India data.