This year Navrathiri starts on the 28 th of Sep,2011.It's a festival celebrated in our country in different ways, but basically it's the worship of the Goddessess, Durga, Lakshmi and Saraswati on all 10 days and nine nights.
It's the celebration of Goddess Durga killing the demon Mahishasura and the Vijaya Dasami is for Lord Ram killing Ravan.
The first three days are dedicated to Goddess Durga for strength, energy and valor. The next three days to Goddess Lakshmi for prosperity and wealth. The last three days to Goddess Saraswati for art and knowledge.
On the tenth day of Navrathiri , Vijaya Dasami is Celebrated. On this day irrespective of Day or yoga, new venture, Sthapana pooja for New factory, industry or any new venture is undertaken. Specially it is best and auspicious day to get kids admitted into schools or start learning of any art / cultural classes.
POINT TO REMEMBER :-
During the course of Navarathri the cleaning of the house should not be done and clearing and moving things should be avoided during the nine day festival. Since it is considered as Devi aavahanam and hence it is being treated as obstacles and bad omen, which will have a negative effect on the native of the house.