The Congress on Thursday raised concerns over the detention of eight former Navy personnel by Qatar and sought to know from the government why it could not seek their release even after seven months. Congress general secretary Jairam Ramesh said in a statement that even though the Qatari national arrested along with the former Naval personnel has been released, why have the Indian authorities not been able to secure the release of Indians? "Why is the Indian government still unable to either ascertain the facts of the case or to reassure the ex-naval personnel and their families that justice will be done," he asked.