Tax exemption for long term lease of industrial plots mandates continued land use and joint liability upon change, with monitoring. Amendment substitutes the conditions for tax exemption on long term leases of plots: exemption is conditional on continued industrial or financial use; the Central Government will monitor compliance; violations or change of land use render the original lessor, original lessee and any subsequent lessee/buyer/owner jointly and severally liable to pay the state tax that would have been due on the upfront lease amount with interest and penalty; and lease or sale agreements must record the exemption and parties' undertaking to comply.