Karthigai
Karthigai is the eighth month of the Tamil calendar. The name of the month is derived from the position of the Moon near the Kiruthigai nakshatra on the pournami day. The month corresponds to kulir kaalam and falls in November-December in the Gregorian calendar.
In the Hindu lunar calendar, it corresponds to the eighth month of Kartika, falling in the Gregorian months of October-November. In the Hindu solar calendar, it corresponds to the eighth month of Vrscika and begins with the Sun's entry into Scorpio. In the Vaishnav calendar, it corresponds to the eighth month of Damodara.