State Commission jurisdiction governs consumer complaints above lower threshold and appeals from District Forums, plus supervisory review. State Commission has jurisdiction to entertain consumer complaints within the prescribed mid-tier monetary band and to hear appeals from District Forums; it may call for records and pass orders where a District Forum exceeded, failed to exercise, or exercised jurisdiction illegally or with material irregularity. Complaints must be instituted within the territorial limits where the opposite party actually and voluntarily resides, carries on business, has a branch office, or personally works for gain, with specific rules where multiple opposite parties are involved, subject to permission or acquiescence.