Duty payment compliance: strengthened administrative monitoring to detect defaults promptly and initiate recovery measures including forfeiture of instalments and prosecution. The circular requires Sector, Range and Divisional officers to scrutinise RT-12 returns on receipt, detect and endorse payment defaults immediately, direct assessees to pay dues forthwith, prepare daily lists of defaults, and escalate to Divisional Officers within two working days. Where dues remain unpaid after a fortnight, officers must initiate recovery proceedings, enforce forfeiture of instalment payments with consignments discharged only from account current, pursue recovery with interest, and ensure monthly monitoring by Commissioners.