The Navami of the Krishna Paksha of Ashwin month is called Mother Navami. Just as the sons make sacrifices for their fathers, fathers, ancestors etc. on the ancestral side, similarly the sons and bridegrooms of those houses also perform the tarpan work for their divinity mother-in-law, mother etc., from Pratiprada's Pratiprada to Navami. Women, on the day of Navami, give satisfaction to the Divine Mother and mother-in-law by donating them to the Brahmin for self-peace.
Married women who died on Navami date or women whose date is not known, Shraddha is performed on this day with full legal practice. Mother Navami is the classical law of Shraddha of Mother. Offering food to daughter-in-law women on this date is virtuous.
It is believed that on the day of Mother Navami, Suhagan is blessed by paying obeisance to the dead women, by offering food, performing charity and offering the contents of the suhaag, and the blessings of the suhaag are unchanged.
Navami Shraddha Tithi is also known as Matra Navami. To perform mother's Shraddha this tithi is most suitable. To appease all the deceased female members of the family Shraddha is done on Navami Tithi. Other family members who departed the world on Navami tithi of either of the two Paksha, Shukla Paksha as well Krishna Paksha, Shraddha are done on this day.
In the rituals, instead of gods from Hindu pantheon, demigods like Dhurilochan whose eyes remain half closed are invoked. Dhuri means smoke and lochan means eyes; their eyes remain half closed due to smoke.
In some regions, the Shradh rituals are not performed on the day. Instead food or meal is offered to the married woman’s soul. Some people also feed a Sumangali (married women) on the day.