Fai, 63, was given a two-year sentence in March 2012 for illegally working for Pakistan's Inter-Services Intelligence to influence American policy on Kashmir. He was scheduled to be released in March next year.
In a petition filed on November 15, US Assistant Attorney Gordon Kromberg sought a reduction in Fai's prison term because he had cooperated in bringing to book other persons involved in transferring funds from the ISI to the US to serve the cause of Pakistan.
Fai was arrested on July 19, 2011 for concealing the transfer of USD 3.5 million from the ISI to fund his illegal lobbying efforts and to influence the US government on the Kashmir issue. Prosecutors said his actions violated the Foreign Agents Registration Act.
In March last year, Fai was sentenced to two years in prison for "conspiracy to defraud the US" by concealing the transfer of the funds from the ISI.