(g)"infrastructure facility" means-(i)an infrastructure facility as defined in the Explanation to clause (i) of sub-section (4) of section 80-IA, or any other public facility of a similar nature as may be notified by the Board in this behalf in the Official Gazette and which fulfills the conditions as may be prescribed;(ii)an undertaking referred to in clause (ii) or clause (iii) or clause (iv) or clause (vi) of sub-section (4) of section 80-IA; and(iii)an undertaking referred to in sub-section (10) of section 80-IB;