Narayani Stuti is the 11th chapter of Sri Devi Mahatmyam. Devi Mahatmyam is also called the Durga Saptha shloki or The Chandi Paath.It is a part of the Markandeya Mahapurana. This purana is related by Markandeya Maharishi to Jaimini Maharishi, relating the history of the various manvantharas and it is during the story of the eighth Manu called Savarni that the chapters of the Chandi Paath occur.
In the 11the chapter of the Devi Mahatmyam,which recognised as Narayani Stuti,the Devas sing a stuti praising the deeds and attributes of Devi. She promises them that whenever evil arises in the world, She will take an avatar and defeat it.
This chanting of Narayani Stuti mitigates the evil of Rahu in one's horoscope.Rahu ,as I have observed plays a crucial role in veena playing,the placement of Rahu,its strength,etc.have always played a vital and very important role regarding veena.Pleasing Rahu and its prime deity Goddess Durga ,bestows upon the native abundant talent and physical prowess and finesse in veena technique.Rendering the raga Narayani also enhances veena-playing abilities as well as mitigating the evils of a mispalced Rahu or enhance an already well-placed Rahu in the native's horoscope.Raga Narayani has the famous krithi of Sri Thyagaraja,"Bhajana Seyu Maragamunu".Sri Muthuswami Dikshithar through the sahithya of his krithi, "Mahishaasura Mardhineem Namaami", set to misra chaapu thalam in Narayani has conveyed the spirit and life of the raga.
The recitation of Sri Narayani Stuti atleast once everyday,results in miraculous improvement and progress in veena by way of manodharma and stunning fluidity in handling veena. This sloka is the most powerful for veena practitioners,they will find almost instant results by chanting it.This also has the capacity to ward off enemies and clear the path towards success.
SRI NARAYANI STUTI:-
Om Rushiruvaacha-Devyaa Hathe ThathraMahaa Surendre sendrah suraavahnipurogamaasthaam!
Kaathyaayineem thushtuvurishtalaabhaad Vikashivakthraabjavikaashithaashaaha!!
Devi Prapannaarthihare praseeda praseeda Matharjagathokhilasya!
Praseeda Visweshvari Paahi vishwam thvameeswari Devi charaacharasya!!
Adhaara bhoothaa jagathasthwameka Maheeswaroopena yathah sthithaasi!
Apaam swaroopa sthithayaa thwayaitha daapyaayathe kruthsnamalanghyaveerye!!
Thwam Vaishnaveeshakthirananthaveeryaa Vishwasya beejam parmaasimaayaa!
Sammohitham Devi Samasthamethath thwam vai prasanna bhuvi mukthi hethuhu!!
Vidyaaha samasthaasthava Devi bhedaaha sthriyah samasthaaha sakalaa jagathsu!
Thwayaikayaa poorithamambayaithath kaa the sthuthihi sthavyaparaaparokthihi!!
Sarva bhootha yadaa Devibhukthimukthipradaayinee!
Thwam sthuthaa sthuthayekaa vaa bhavanthuparamokthayaha!!
Sarvasya budhdhi roopena janasya hrudi samsthithe!
Swargaapavargade Devi Naaraayani Namosthuthe!!
Kalaa Kaashtaadiroopena parinaama pradaayinee!
Vishwasyoparathou shakthe Naraayani Namosthuthe!!
Sarvamangala Maangalye Shive sarvaartha saadhike!
Sharanye Thrayambake Gowri Naaraayani Namaosthuthe!!
Srushtisthithivinaashaanaam Shakthibhoothe sanaathani!
Gunaashraye gunamaye Naaraayani Namosthuthe!!
Sharanaagatha deenartha parithraana paraayane!Sarvasyaarthihare Devi Naaraayani Namosthuthe!!
Hamsayukthavimanasthe Brahmaanee Roopadhaarinee!
Kowshaamba ksharike Devi Naaraayani Namosthuthe!!
Maaheshwariswaroopena Naaraayani Namosthuthe!!
Kowmaareeroopasamsthaane Naaraayani Namosthuthe!!
Praseeda Vaishnaveeroope Naaraayani Namosthuthe!!
Vaaraaharoopini Shive Naaraayani Namosthuthe!!
Nrusimharoopenogrena hanthum daithyaan kruthadyame!
Thrailokyathraanasahithe Naaraayani Namosthuthe!!
Kireetini Mahaavajre Sahasra Nayanojhvale!
Vruthra Praanahare Chaindree Naaraayani Namosthuthe!!
Ghoraroope Mahaaraave Naaraayani Namosthuthe!!
Chamunde Mundamadane Naaraayani Namosthuthe!!
Lakshmi Lajje MahaavidyeShraddhe Pushti Swadhe Dhruve!
Mahaaraathri Mahaamaaye Naaraayani Namosthuthe!!
Medhe Saraswathi Vare Bhoothi Bhaabhravi Thamasi!
Niyathe Thwam Praseedeshe Naaraayani Namosthuthe!!
Sarvaswaroope Sarveshe Sarvashakthisamanvithe!
Bhayebhyasthraahino Devi Durge Devi Namosthuthe!!
Ethaththevadanam Sowmyam Lochanathrayabhooshitham!
Paathunaha Sarvabhoothebhyaha Kaathyaayani Namosthuthe!!
Thrishoolam Paathu No Bheetherbhadrakaali Namosthuthe!!
Hinasthi Daithyathejaamsiswanenaa poorya Yaa Jagath!
Saa Ghantaa Paathu No Devi Papebhyo Naha Suthaaniva!!
Shubhaaya Khadgo Bhavathu Chandike Thwam Nathaa Vayam!!
Rushtaa Thu Kaamaan Sakalaanabheeshtaan!
Thwaamaashrithaanaam Na Vipannaraanaam
Thwaamaashrithaa Hyaashrayathaam Prayaanthi!!
Ethathkrutham Yathkadanam Thvayaadya
Dharmadwishaam Devi Mahaasuraanaam!
Krithvaambike Thathprakarothi Kaanyaa!!
Vidyaasu Shasthreshu Vivekadeepe
Shvaadyeshu Vaakyeshu Cha Ka Thvadanyaa!
Rakthaamsi Yathrogravishaascha Naagaa
Yathraarayo Dasyubalaani Yathra!
Daavaanalo Yathra Thadhaabdhimadhye
Thathra Sthithaa thwam Paripaasi Vishwam!
Vishveshavandyaa Bhavathee Bhavanthi
Vishwashrayaa ye Thwayi Bhakthinamraaha!!
Devi Praseeda Paripaalaya Noribheethe-
-Rnithyam Yathaasuravathaadadhunaiva Sadyaha!!
Paapaani Sarvajagathaam Prashamam Nayaashu
Pranathaanaam Praseedathvam Devi Vishwarthihaarini!
Thrailokyavaasinaameedye Lokaanaam Varadaa Bhava!!
Devyuvaacha:-Varadaaham Suraganaa Varam Yanmanasechchatha!
Tham Vrunudhwam Prayachchaami Jagathaamupakaarakam!!
Devaa Oochuhu:-Vaisvatharenthare Praapthe Ashtaavimshathime Yuge!
Shumbho Nishumbhaschaivaanyaavuthpathsyethe Mahaasurou!!
Nandagopagruhe Jathaa Yashodaagarbhasambhavaa!
Thasthou Naashayishyaami Vindhyaachalanivaasinee!!
Punarapyathirowdrena Roopena Pruthiveethale!
Avatheerya Hanishyaami Vaiprachiththamcha Daanavaan!!
Bhakthayanthaashchya Thaanugraan Vaiprachiththaan Mahaasuraan!
Rakthaa Danthaa Bhavishyanthi Daadimeekusumopamaan!!
Thatho Maam Devathaaha Swarge Marthyaloke Cha Maanavaaha!
Sthuvantho VyaaharishyanthiSathatham Rakthadanthikaam!!
Munibhihi Samsthuthaa Bhoomou Sambhavishyaamayonijaa!!
Thathaha Shathena Nethraanaam Nireekshishyaamyaham muneen!
Keerthayishyanthi Manujaaha Shathaaksheemithi Maam Thathaha!!
Bharishyaami Suraaha Shaakairaavrushtehe Praanadhaarakaihi!!
Shaankabhareethi Vikhyaathim Tada Yaasyaamyaham Bhuvi!
Thathraiva Cha Vadhishyaami Durgamaakhyam Mahaasuram!!
Durgaadeveethi Vikhyaatham Thanme Naama Bhavishyathi!
Punashchaaham Yadaa BheemamRoopam Kruthva Himaachale!!
Rakshaamsi Bhakshayishyaami Muneenaam Thraanakaaranaath!
Tadaa Maam Munayaha Sarve Sthoshyanthyaanamramoorthayaha!!
Bheemaadeveethi Vikhyaatham Thanme Naama Bhavishyathi!
Yadaarunaakhyasthrailokye Mahaabaadhaam Karishyathi!!
Thadaaham Bhraamaram Roopam Kruthvaasankhyeyashatpadam!
Thrailokyasya Hithaardhaaya Vadhishyaami Mahaasuram!!
Bhraamareethi Cha Maam Lokasthadaa Sthoshyanthi Sarvathaha!
Ithdham Yadaa Yadaa Baadhaa Daanavotdhaa Bhavishyathi!!
Thadaa Thadaavatheeryaaham Karishyaamarisankshayam!!
"SwasthiShreemarkandeyapuraane Saavarnike Manvanthare Devi Maahaatmye
I have given the text in english,with accurate pronunciations,for further clarification kindly go to the link
http://sanskrit.safire.com/Sanskrit.html#Saptashati for the 11th chapter in Devi Mahatmyam.