For the archivist or collector:
Astrologers often look back at specific 2002 dates to analyze birth charts (Kundali) for individuals born in that year.
The 2002 calendar accounted for the Adhik Maas (extra lunar month added to keep the lunar and solar calendars aligned), which significantly altered the standard scheduling of festivals like Diwali and Navratri that year.
Kalnirnay, which literally translates to 'timely decision' from Marathi, is far more than a simple calendar. It is a "calmanac"—a unique blend of a calendar and an almanac—that has revolutionized how Indians access traditional knowledge.
Beyond dates, it served as a repository of seasonal recipes, medical advice, agricultural tips, and monthly horoscopes. Major Festivals and Tithis in 2002