You specifically said that your advocate filed REVISION petition. If it is revision petition, the revision court does not have power to accept further documentary and oral evidence. The powers in revision petition are limited. Those are on the basis of the record. The revisional courts interference is warranted - (1) When the trial court fails to exercise the jurisdiction it has been conferred under the law (2) When the trial court exceeds its jurisdiction and lastly (3) The impugned order is perverse on the face of it. Then only, revision court interferes. You did not say whether it is interim relief or final relief. I gather that it is a case under D.V. Act. If it is so, an appeal lies and in appeal an application to lead further evidence lies. If it is interim relief, then you ask the permission in the trial court itself to lead further evidence to buttress your case. You are harping that you are ready to take your wife back and taking the totality of the situation, the court did not fit it right to send the wife back to husband. so, for reduction of maintenance amount you can do what I suggested above.