ISLAMABAD - The National Accountability Bureau (NAB) despite having solid evidences and proofs of OGRA multi-billion rupees scam still seems reluctant in the finalization of reference against the culprits who dented billions to the national kitty due to some officials working within the federal watchdog, well-placed sources told The Nation on Monday. According to the sources, the NAB is divided over on the list of accused involved in this scam despite passing of several deadlines by the Accountability Court Islamabad for the finalization of the challan regarding this mega scam. The NAB headquarters on last Friday had held a pre-Executive Board Meeting (EBM) regarding the OGRA scam but the bureau's officials of investigation and prosecution failed to develop a consensus over the list of accused in the reference.The prosecution wing which is headed by the Persecutor General Accountability (PGA) K.K. Agha, objected on the name of an energy tycoon who has recently written a letter to NAB chairman claiming his innocence regarding gas theft and said that neither the investigation team of the NAB nor any expert ever visited JJVL to verify the facts on ground the sources added.The sources disclosed that the PGA NAB was of the view that the investigation team must visit the oil field to review the on-ground situation for that purpose a three-member investigation team of the federal watchdog left Islamabad Sunday night for Karachi to visit JJVL where the NAB team will visit the gas field and it is expected that within next couple of days the final draft will again be presented before the PGA. Then for final approval of the OGRA scam of the second reference will be sought from the Chairman NAB Qamar Zaman Chauhdry in the NAB executive board meeting (EBM) within this week the sources added.The total amount of the OGRA scam has increased up to Rs120 billion as NAB has already filed an interim reference of Rs44 billion in the Accountability Court (AC)-1 Islamabad. The NAB launched an investigation into OGRA scam on the directives of the Supreme Court (SC) on Nov 2011 but it missed several deadlines fixed by the apex court and the accountability court of Islamabad for filing the reference the sources said.This news was published in The Nation newspaper. Read complete newspaper of 21-Jan-2014 here.