SGPC yesterday inaugurated the 'preservation work' of 'Khajana Deori' located with the Darbar Sahib precincts. The Khajana Deori, also referred as Bunga Maharaj Sher Singh, is a defacto memorial of Teeja Ghallughara of June 1984 as it carries numerous bullet marks inflicted during Indian Army's attack on Darbar Sahib in June 1984.