A Fairfax man has admitted that he concealed $3.5 million in funds funneled over two decades from Pakistan’s spy agency to support his lobbying activities. Syed Ghulam Nabi Fai, 62, ran the Kashmiri American Council, a D.C. lobbying group that focuses on Kashmir, a disputed area on Pakistan’s border with India. He pleaded guilty in federal court in Alexandria on Wednesday to one count of conspiracy and one count of corruptly endeavoring to impede the Internal Revenue Service.

Fai admitted that he received money from Pakistan’s Inter-Services Intelligence and other government agencies and was untruthful about the origins of the funds. In total, his plea agreement says, he concealed at least $3.5 million sent to his lobbying group from ISI and other Pakistani government employees between 1990 to 2011.