If you need specific data (like a birth chart or festival date) from 2003 rather than the physical scan of the book: Drik Panchang: Offers a comprehensive Tamil Panchangam archive
Note: When downloading PDFs from third-party sites, always ensure your antivirus is active, as older "document download" sites often host malware. pambu panchangam 2003 pdf link
Pambu Panchangam (also known as the Asal Maruthuvakudi Vakya Panchangam) for the year 2003 corresponds to the Tamil year Subanu Varusham (2003–2004). You can find a PDF copy of the Subanu Varusham (2003–2004) Panchangam hosted on Document Details: Tamil Year: Subanu (சுபானு). Period covered: Mid-April 2003 to mid-April 2004. Digital scan of the original Vakya Panchangam. If you need specific data (like a birth