Nine forms of Durga, are nine manifestations of the goddess Durga in Hinduism, especially worshipped during the festival of Navratri where each of the nine manifested forms is venerated respectively for each night.
Performing the Navdurga puja yagyan:
blesses with immense energy. As a result, even the greatest hardships that may seem hopeless to an individual may be conquered and at the same time, immense blessings from the Divine Mother can be brought in.
If the planetary condition is not good in your horoscope or the stars are not in your favor then this puja is most powerful.