Onam is the national festival of Kerala, celebrated in the month of Chingam. The main day, Thiruvonam , occurs on the day of the Thiruvonam Nakshatra (Shravana) in the month of Chingam.
: Begins with Chingam 1 (Malayalam New Year), followed by Kanni, Thulam, and Vrischikan. Sample Nakshatra & Panchangam Data (1987) 1987 malayalam calendar with nakshatra
The , which tracks the Kolla Varsham (Kollam Era) years 1162–1163 , is a sidereal solar calendar vital for understanding the cultural and astrological landscape of Kerala during that year. Unlike the Gregorian calendar, this system determines dates based on the Sun’s transit through the 12 zodiac signs ( Rasis ), with each month beginning when the Sun enters a new constellation. Structure of the 1987 Malayalam Calendar In 1987, the year was split between two Malayalam eras: Onam is the national festival of Kerala, celebrated