"The Hills will be closed on Saturday and Sunday to condemn the unwarranted arrest of GJM leaders," GJM supremo Bimal Gurung said. Tamang, a close associate of the GJM supremo, is also the senior-most of the GJM leaders to be arrested so far. He is, however, only one of nearly 700 party activists held by state authorities since the renewed protests for the formation of a separate Gorkhaland began last month, after the United Progressive Alliance at the centre approved the carving out of Telangana from Andhra Pradesh.