EX-23 3 c78011exv23.txt INDEPENDENT AUDITORS' CONSENT INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in these Registration Statements of NiSource Inc. on Form S-8 File No. 333-19983, on Post-Effective Amendment on Form S-8 to Form S-4 File No. 333-33896-01 and on Post-Effective Amendment on Form S-3 to Forms S-4 File No. 333-33896 and File No. 333-33896-01 of our report dated June 1, 2003, appearing in the Annual Report on Form 11-K of the Northern Indiana Public Service Company Bargaining Unit Tax Deferred Savings Plan for the year ended December 31, 2002. DELOITTE & TOUCHE LLP Indianapolis, Indiana June 26, 2003