(4) The period of all the lease or license of the nonspecified minor minerals except the mining leases of the minerals now classified as minor minerals granted before the date of commencement of the Karnataka Minor Mineral Concession (Amendment) Rules, 2016, the validity of their leases or license are expired or about to be expired under sub-rule (2), shall be extended and be deemed to have been extended with effect from the date of expiry of the period of renewal last made up-to a period ending on 31st March, 2020 or till the completion of renewal period, if any, or a period of twenty years, from the date of grant of such lease or license, whichever is later, subject to the condition that all the terms and conditions of the lease have been complied with and also subject to the condition that renewal application for the expired lease had been made by the lessee within the time period required for filing such renewal application.