Bandhs may be called by any kind of organisation, not only trade unions or work-related groups - for instance, political parties, human rights groups, campaigning groups, women's groups, youth groups, etc, often call bandhs to protest various issues. They are usually regional rather than sectoral. Bandhs vary in duration from hour-long shutdowns to "indefinite" bandhs which can go on for months.
Accusing the local government of corruption, Congress supporters observed a four-hour bandh yesterday.
Protesting the arrest of a prominent Hindu seer, Shiv Sena have launched a bandh call across Uttar Pradesh.