I am posting the two important slokas to chant during Navarathiri on all nine days. One is Navamangali (as given in Devi Bagavatham book) and the other Laxmi Dwadasa Naama (twelve names) sthothram of Mahalaxmi.
Kathyayyanee mahamaye bavani buvaneswaree
Danyoham athibakyoham baavithoham mahathmabi
yahprushtam soomahath punyam puranam vethavithkrutham
Namodevyai prakruthyaisa vthathryai thaitham namaha
Kalyanyai kamadaayai sa vruthyai sithyai namo nama:
Sath sithananda roopinyai samsararanaye nama:
Panchakruthyai vthaatryi buvaneswaryai namo nama:
Greedathe logarasana sagathe sinmaya: siva:
Aahaarasthyai sathaananda: vaasasthe hruthyam mama
Nama: sivayai kalyanyai santhyai bushtyai namo nama:
Bagavathyai namodevyai ruthrayai sathatham nama:
Jaya jaya jayadare jayaseela jayaprathe
Yagna soogara jaye thvam jayadevi jayavahe
Soogathe mosoothe devi prassanna bava sundari
Pushpasaaranandaneeya thulaseekrishna jeevani
Namasthe thulaseeroobe namo lakshmi saraswathi
Namo durge bagavathy namasthe sarva roobini
Source :(http://hinduspirit.blogspot.com/2010/05/navamangali-mantra.html)
( By chanting the below Dyana sloka followed by twelve names of Mahalaxmi,one will be blessed with children and prosperity)
DYANAM
KAANTHYAA KAANCHANA SANNIPAAM
HIMAGIRI PRAKYAIS CHATURBIR KAJAIHI
HASTHOTHSHIPTHA HIRANMAYAAMRUTHAKADAIHI
AASICHYAMAANAAM SRIYAM
PIPRAANAAM VARA MAPJA YUKMAMABAYAM
HASTHAIHI KIREEDOJVALAAM
SHOWMAAPATHA NIDHAMBA BIMBA LALITHAAM
VANDE ARAVINDHA STHITHAAM
THRILOKYA POOJITHE DEVI KAMALE VISHNU VALLABE
YADHA THVAMACHALAA KRISHNE THADHA BAVA MAYEE STHIRAA
EESWAREE KAMALA LAXMIHI CHALA BOODIR HARIPRIYA
PADMA PADMALAYA SAMYAK UCHAIHI SREEHI PADMADHAARINI
I am also giving the link for Milagu vadai made during Navarathiri for Moolam star. Goddess Saraswathi Aavahanam is done on this day and the neivedhyam is offered for moolam star.
It is similar to Anjaneyar vadai (which is put as garland). I followed Shanthi Krishnakumar's recipe (version 1 ) last year and it came out very well. I saved the pictures, when I prepared on
Sapthami day (11.102013).
I thank Shanthi madam for this authentic recipe. Here is the link.
http://shanthisthaligai.blogspot.com/2010/08/anjaneyar-vadai-milagu-vadai.html