Export-linked duty concession requires meeting export obligations or facing customs duty and interest on default. EPCG Scheme provides concessional or zero-duty import of capital goods against a time-bound export obligation, governed by prescribed ANF applications, nexus and installation certificates, single-port import registration, and monitoring by Regional Authorities. Export obligations are fixed in block-wise proportions with provisions for set-off, automatic adjustment for up to ten percent variation in utilization, extension on payment of composition fee or part-duty deposit, and regularization by payment of customs duties plus interest for defaults. Redemption requires prescribed documentary proof; non-compliance leads to enforcement action.