Claims and denials of responsibility have been reported in the name of the Khalistan Zindabad Force for a May 2009 attack at the Gurdwara Ravidass in Vienna , Austria , that left Rama Nand , a leader of the Dera Sach Khand dead , 17 injured , and sparked riots across northern India
attack at the Gurdwara Ravidass
Vienna temple attack
Khalistan Zindabad Force