Navaratri Puja Vidhi
Certain items are required to perform the Navratri pooja. These may include the idol or picture of Goddess Durga, Durga Sapthashati book, water in Kalash (pitcher), fresh washed mango leaves, one coconut, roli (red color for tilak), moli (red sacred thread), chawal (rice), paan (betel leaves), supari (beetle nuts), cloves, cardamom, kumkum (vermilion) and gulal. You will also need few incense sticks, a deep and matchstick. The flowers used for Navratri puja may include rose, lotus and red hibiscus. Stalks of Bilwa (bael) leaves are also used for the puja. You may offer fresh pomegranate and sweets such as laddoo and peda, as prasad. You will require a Panchpatra containing spoon and water, bael leaves. Take a mat as well, to sit.
In order to perform the puja, take bath in the morning and wear laundered clothes. Then, fill the kalash with water and place mango leaves on its mouth. Place a coconut inside the kalash. Now, tie moli on the neck of the pitcher. Place the idol or picture of Ma Durga at your puja room and then worship the deity with roli, rice, flowers, balepatra, kumkum and gulal. Thereafter, you may add burning coal to a clay pot and pour ghee (clarified butter) over it. Offer a small piece of the sweetmeat to the fire. Keep adding ghee to the fire at regular intervals. Make sure that you maintain the light throughout your puja. Once the puja is over, fold your hands and encircle the flame for three times. Light the incense sticks and deep and perform the aarti. You may sing arti song while doing the aarti. You may chant Durga Saptashati or Devi Kavach or ask a pundit to do it, to conclude the puja.
source : iloveindia