CLEAN: Fire at Taj hotel as commandos kill last gunmen

The video covers a tense situation at the Taj Hotel, where commandos are seen covering the heritage wing. Window panes break due to a blaze, and there are indications of police activity. Gunfire is heard, and smoke billows from the building. The ground floor erupts, possibly due to a grenade, with visible flames.

What was happening in the rear building during the incident?

Describe the scene observed from the window of the Taj Hotel.