The Hindu months of Margasira and Sravanam are considered very dear to Lakshmi Devi and she is worshiped by the devotees during these months.
Chanting Lakshmi Ashtotaram, Ashtakam and Sahasranamam while worshiping Lakshmi Devi in these auspicious months is good for a prosperous life.
These stotrams and ashtakams are very powerful mantras which are very effective.
Also Read: Lakshmi Aarti - Om Jai Lakshmi Mata
Here is Sri Mahalakshmi Ashtakam lyrics. You can recite 'Kanaka Mahalakshmi Namostute' at the end of every second line, for reciting Kanaka Mahalakshmi ashtakam.
Namastestu MahaaMaaye Sri Peethesura Poojite
Sankha Chakra Gada Haste Mahalakshmi Namostute
नमस्तेस्तु महामाये श्रीपीठेसुर पूजिते|
शंख चक्र गदा हस्ते महालक्ष्मी नमोस्तुते ||1||
Nameste Garudaroode Dolasura (kolasura) Bhayankari
Sarva Paapa Hare Devi Mahalakshmi Namostute
नमस्ते गरुड़ारूढे डोलासुर (कोलासुर) भयंकरी|
सर्वपाप हरे देवी महालक्ष्मी नमोस्तुते ||2||
Sarvagyen Sarva Varade Sarva Dushta Bhayankari
Sarva Dukha Hare Devi Mahalakshmi Namostute
सर्वज्ञे सर्व वरदे सर्वदुष्ट भयंकरी|
सर्वदुख हरे देवी महालक्ष्मी नमोस्तुते ||3||
Siddhi Buddhi Prade Devi Bhukti Mukti Pradayani
Mantra Moorte Sadaa Devi Mahalakshmi Namostute
सिद्धि बुद्धि प्रदे देवी भुक्ति मुक्ति प्रदायिनी|
मंत्रमूर्ते सदा देवी महालक्ष्मी नमोस्तुते ||4||
Aadyanta Rahite Devi Aadi Sakti Maheswari
Yogagyen Yoga Sambhute Mahalakshmi Namostute
आद्यंतरहिते देवी आदि शक्ति माहेश्वरी|
योगज्ञे योग संभूते महालक्ष्मी नमोस्तुते ||5||
Sthula Sookshme Maha Roudre Maha Sakti Mahodare
Maha Paapa Hare Devi Mahalakshmi Namostute
स्थूल सूक्ष्मे महा रौद्रे महा शक्ति महोदरे|
महा पाप हरे देवी महालक्ष्मी नमोस्तुते ||6||
Padmasana Sthite Devi Param Brahma Swaroopini
Paramesi JaganMaataah Mahalakshmi Namostute
पद्मासनस्थिते देवी परब्रह्म स्वरूपिणी|
परमेशि जगन्मातः महालक्ष्मी नमोस्तुते ||7||
SwetaamBaradhare Devi Naanaalankara Bhooshite
JagatSthite JaganMaata Mahalakshmi Namostute
श्वेताम्बरधरे देवी नानालंकारा भूषिते|
जगस्थिते जगन्माता महालक्ष्मी नमोस्तुते ||8||
MahaLakshmyashtakam Stotram Yah: PathetBhaktiMaannara:
SarvaSiddhi Mavapnoti Raajyam Prapnoti SarvaDa
Ekakaale Pathennityam MahaPaapa Vinasanam
Dwikaalam Yah: Pathennityam DhanaDhaanya Samanvitam
Trikaalam Yah: Pathennityam MahaSatru Vinasanam
Sri Mahalakshmir Bhavennityam Prasanna Varada Bhava (subha)
महालक्ष्म्यष्टकं स्तोत्रं यः पठेत भक्तिमानरः|
सर्व सिद्धि मवाप्नोति राज्यं प्राप्नोति सर्वदा|
एककाले पठे नित्यं महापाप विनाशनम|
द्विकालं यः पठे नित्यं धनधान्य समन्वितं|
त्रिकालं यः पठे नित्यं महा शत्रु विनाशनं|
श्री महालक्ष्मी भवे नित्यं प्रसन्न वरदा भवा (शुभा)||