The phrase functions as a proper noun phrase, designating a specific event. The core of the term is the noun "bandh," a word of Hindi origin meaning 'closed,' which in this context refers to a form of civil protest characterized by a general strike or complete shutdown of a region.
Grammatically, the components serve as modifiers to specify this noun. "Jharkhand," a proper noun for an Indian state, acts as a noun adjunct, pinpointing the geographical location of the event. The date, "11 Sep," functions as an adjectival phrase, identifying the specific day the protest occurred. Therefore, the entire phrase does not describe a quality or an action but names a singular political or social incident.
In application, using this phrase as the main point of an article establishes the subject as a specific, identifiable event. The article's focus would then be on the causes, execution, participants, and socio-economic impact of that particular general strike in Jharkhand on September 11th. The phrase acts as the title or subject of a case study, not as a descriptive or action-oriented term.