This is a little bit different from the Durga Pooja routine everyone knows. Here, a lamp signifies the goddess Durga. Lamp is lit and Pooja is performed for the Lamp in an elaborated manner. Upon completion of the pooja rituals, Aarati is offered to Goddess Durga and 108 Pradakshina namaskaras are performed around the Goddess in the form of Deepa (hughe lamp). This pooja is beneficial for those who seek blessings of Goddess Durga to ward off their bad luck or misfortune.
It is also beneficial for those who are very much prone to attract negative energy, inimical forces, prone to accidents and particularly those who are under the influence of Rahu in their horoscopes either through placement of Rahu or through Rahu Dasha.
Those who wish to avoid problems of any kind and particularly if you are anticipating any problem coming your way, you may do this to completely prevent the problems.