The forensic team and the Bomb Detection Disposal Squad, after preliminary analysis, have ascertained that a “fairly good quantity of high-grade explosives had been used" in the Ludhiana court blast on Thursday. <br /> <br />"High-grade explosives are usually PETN (pentaerythritol tetranitrate) or RDX (Royal Demolition explosive),” a source said. <br /> <br />Congress general secretary Priyanka Gandhi on Thursday accused BJP leaders of loot and scam related to Ram Mandir Trust. <br /> <br />Noting that the probe ordered into Ayodhya land scam is an eyewash, Gandhi demanded intervention of the Supreme Court.