Pakistan has accused the United States of conducting a slander campaign against it. It was responding to the recent arrest of an American of Pakistani origin Ghulam Nabi Fai. He has been charged with illegally lobbying the US Government and of failing to register with the authorities as the agent of a foreign government. Ghulam Nabi Fai, a 62-year-old American citizen, is accused of working in Washington for a Pakistani spy agency to lobby for Kashmiri independence. Mr Fai was arrested on Tuesday and charged with failing to register as a foreign government agent. Mr Fai and a second man, Zaheer Ahmad, a 63-year-old US citizen and resident of Pakistan, were both charged in the case. Mr Ahmad is believed to be in Pakistan. The pair are suspected of having connections to an effort by the Pakistani government that allegedly funnelled millions of dollars through a front group, the Kashmiri American Council, to Washington to lobby US politicians on behalf of Kashmir. The US has said the group contributed money to US election campaigns, helped fund conferences and other efforts, including meetings with White House and state department officials. The US justice department said Mr Fai – who denies the charges – and Mr Ahmad would face five years in prison if found guilty.