IMPHAL, July 23: The All Manipur Football Association has forward intimation to national referees of Manipur to attend the AIFF annual fitness test for national referees at Jamshedpur, which begins on August 19, to be eligible for the federation’s assignment upto December 31, 2011. AMFA has asked all intending national referees from the state to report to its office before August 5 for further official communication with AIFF.