By KEN ALI Here are five troubling facts about billion­aire Indian industrialist Naveen Jindal, who has shockingly emerged as the frontrunner for control of the taxpay­er-owned mothballed Petrotrin operations. After Jindal was charged in connection with the so-called “coal scam,” he needed the court’s official permis­sion to travel abroad.He was formally al­lowed to travel for…