All of them had an advance knowledge of Indian defence posts and routes taken by troops during patrolling in the higher reaches of Ladakh, official sources said.
The decision taken by the Home Ministry has been conveyed to authorities concerned in Ladakh for bringing down the three -- Salamo, Abdul Khaliq and Adil Thorsong -- to Leh from Margo post in north Ladakh where they have been kept since June 12 after being detained near Sultanchku, the sources said.
Various security agencies, which questioned them, expressed surprise that the three had the knowledge of the Indian posts and routes taken by the patrols to higher reaches along the Sino-Indian border but feigned ignorance about any of the Chinese camps across the Line of Actual Control (LAC), they said.
The trio, who speak only Yarkandi and Uyghur languages, could not give any basic details about Kargalilik of Xianjang province from where they claimed to belong, according to the sources.