While the months are solar, the daily calendar is inextricably linked to the Chandra Nakshatra (the star of the day). A day in the Malayalam system begins at sunrise ( Udayam ) and lasts until the next sunrise. The Nakshatra prevailing at sunrise is generally designated as the star for that day.
Below are specific examples of dates in 1987 with their corresponding Nakshatras and Tithis: Free Mathrubhumi Malayalam Calendar 1987 With Stars 1987 malayalam calendar with nakshatra