If finding the exact 2003 PDF is challenging, consider these alternatives:
Because the Pambu Panchangam is a copyrighted commercial publication printed annually by the Manonmani Vilas Press in Madurai, Tamil Nadu, official digital archives can be difficult to locate freely online. pambu panchangam 2003 pdf link
where you can select any date in 2003 to see the Tithi, Nakshatra, and Yoga. Time and Date: Provides a simplified 2003 Holiday Calendar for India If finding the exact 2003 PDF is challenging,