Karttika is a Sanskrit word used in Hinduism to refer to the eighth lunar month of the Hindu calendar. This month is considered auspicious as many important festivals are celebrated during this time. Some synonyms for Karttika include Karthikai, Kartik, Karthika, and Karthigai. In North India, it is also called the 'month of lights' or 'festival of lights' as it is associated with the popular celebration of Diwali. Additionally, the Karttika month holds great significance in the practice of yoga and meditation, as it is believed to be an ideal time for spiritual growth and self-realization.