CHANDIGARH/GURDASPUR: Thwarting a possible terrorist attack around the Republic Day, the Punjab Police have recovered 40mm Under Barrel Grenade Launcher (UBGL) with two 40 mm compatible grenades, 3.79 Kg RDX, nine electrical detonators and two sets of timer devices for IEDs from Gurdaspur, said Inspector General of Police (IGP) Border Range Mohinish Chawla on Friday.