Kalash Sthapana Puja, or Ghatasthapana, is the one of the most important ceremony during Navratri festival in northern and western parts of
India and in . The best time for Ghatasthapana on October 16, 2012 is from 6:43 to 11:28 AM. Navarati Kalashsthapana Puja involves invoking the mother Goddess in a Pot or Kalash and sowing of seeds (barely etc). The best time on the day is at 11:07 AM. Nepal
You can also do the puja during Abhijit Muhurta - 12:00 PM to 12:56 PM.
The Puja has to be completed on the day before 4:00 PM (afternoon) as the first day Navratri Tithi ends at this time.
In Kalash Sthapana, a pot or kalash with an image of Goddess Durga is installed in the house on the day. The pot or kalash is filled with water and is covered with cow dung and seeds (like barely or wheat) are sown on the dung. The pot is kept on a sand bed and seeds are sown on this too.
Special pujas are conducted on the pot and water is sprinkled daily. The seeds sprout and reach about 3 or 5 five inches on the tenth day. They are distributed as Prasad on the Vijayadashami day.