A takht, or takhat, literally means a throne or seat of authority and is a spiritual and temporal centre of Sikhism. There are five takhts, which are five gurudwaras that have a very special significance for the Sikh community. From Wikipedia
The five-year ban was revoked following Dhadrianwale’s formal apology, while a dispute over Akal Takht's authority escalates with Takht Patna Sahib's defiance.