In the Hindu calendar, Kartika month is considered an extremely auspicious month. The entire month is dedicated to the worship of Lord Vishnu. Observing devotion to Lord Vishnu and performing Masopavasa, i.e., month-long fasting during Kartika leads to the attainment of Moksha. The Matsya Purana and Padma Purana contain extensive descriptions of the greatness of Kartika. Under the Kartika Mahatmya section, various religious rituals and associated legends to be observed in this sacred month are described.
Lord Vishnu in Ksheer Sagar
Tithi Based Fasting Days as per Purnimanta calendar
Each Tithi during Kartika month is considered extremely auspicious for fasting, worship and other religious observances. Each lunar day of Kartika is dedicated to one or another Vrat or Puja rituals.
In modern India, not all traditional Kartika rituals are followed exactly as described in ancient scriptures. However, the following principal observances are widely recommended during Kartika -
Bathing before sunrise throughout Kartika in rivers, lakes, or sacred water bodies.
Offering Dipadana and Arghya throughout the month.
Practicing Bhumi-Shayana, i.e., sleeping on floor and observing celibacy throughout Kartika.
It is also important to understand that worship performed for any deity during the month of Kartika ultimately pleases Lord Vishnu. Hence, offerings made to other deities during this sacred month are considered to reach Lord Vishnu.
Bhishma Panchaka Vrat
The Bhishma Panchaka Vrat is a significant observance performed during Kartika month. Beginning on Kartika Shukla Ekadashi, this five-day Vrat concludes on Kartika Purnima. During this Vrat, Shraddha, Tarpan and Arghya are offered in honor of Bhishma Pitamah. Scriptures state that this Vrat is especially beneficial for those desiring progeny.