An African national , who had sent his son to study at a private university in Punjab, has been seeking help from the Punjab government to facilitate repatriation of his son in coma following an attack on him in Jalandhar three months ago.Over a week ago, the father wrote two letters to Punjab Chief Minister Parkash Singh Badal highlighting how his son had been neglected and insensitive administrative set up evaded responsibility of acting against the accused. The boy had been lying in a hospital in Patiala. The letters remain unanswered.The 23-year-old boy Yannick Nihangaza was enrolled to study BSc (Computers) at Lovely Professional University. He was going to attend a party on April 22 in Jalandhar when he was pelted with stones, severely beaten and left on the roadside to die. Some strangers took him to hospital.Yannick's father Nestor Ntibateganya who wrote to the chief minister said his son was in coma since April 22, 2012.Striking an emotional note, the father said, "I sent him to your country to study." "He was not out on the street to learn how to kill, steal or do other kind of evil like that done to him by these killers who are the citizens of your great nation."He asked the CM to get the accused arrested, "do all you can humanly to help repatriate my son now in a persistent vegetative state to his home country and pay for his medical care."He said the medical team at Columbia Asia Hospital at Patiala had extended all possible to help. "I have recently been informed that there is not much left for them to do but to take my comatose son back to Burundi and admit him in a hospital where he can be expected to be for months if not years. I also have been informed that, based on the recent medical imaging, MRI results, my son will have, 90 per cent certain, massive and serious neurological deficits for the rest of his life if hes lucky to wake up."The father said that it had been an emergency situation and a painful experience to watch his son suffer. He said that he had been "deeply troubled" by the fact that "the killers" who stoned his son and left him for the dead were known and still free."I have been profoundly saddened, shocked and disappointed that nothing has been done by your government to look into this situation the way it should be. I am asking again your government to do justice to my son and my family," he said.The police meanwhile stated that they arrested two persons responsible for attacking Yannick. "We are looking for other persons accused of attacking the student from Burundi," said a senior police official.