For those seeking a blessed marriage, harmonious relationship, or fulfilling married life, chanting Gauri mantras and performing Gauri Vrat has been a sacred practice since ancient times.
Goddess Gauri is an incarnation of Goddess Parvati, representing the purified consciousness attained through intense penance and spiritual discipline to please Lord Shiva.
She is one among the Navadurgas or nine forms of Goddess Durga, as Mahagauri. Along with this form, there are several other forms of this Goddess like Mangala Gauri, Haragauri, Trilokyamohana Gauri, etc., each form carrying unique significance.
When it comes to Gauri mantras, each form of the Goddess Gauri has its own mantra. Some mantras are dedicated to Devi Gauri in her general form, and some to her greater form, like the Mahagauri Mantra. Likewise, the Gauri Gayatri Mantra.
These mantras are commonly chanted to seek the Devi’s blessings for a happy married life, prosperity, longevity, a suitable partner, success, removal of astrological effects and doshas, and overall well-being.

Trailokya Mohana Gauri Mantra for Marriage and Good Relationship
ह्रीं नमः ब्रह्मश्रीराजिते राजपूजिते जयविजये गौरि गान्धारि त्रिभुवनवशङ्करि सर्वलोकवशङ्करि सर्वस्त्रीपुरुष-वशङ्करि सु सु दु दु घे घे वा वा ह्रीं स्वाहा ॥
Hrīṃ Namaḥ Brahmaśrīrājite Rājapūjite Jayavijaye Gauri Gāndhāri Tribhuvanavaśaṅkari, Sarvalokavaśaṅkari Sarvastrīpuruṣa-vaśaṅkari Su Su Du Du Ghe Ghe Vā Vā Hrīṃ Svāhā ॥
Reciting the Maya Bija Hreem, I bow to you, the one served by the Lord Brahma and Goddess Lakshmi, worshipped by sovereign Kings, and the embodiment of Victory and Triumph. O Goddess Gauri, the one who is the primordial essence that pervades all creation.
The goddess who has all the three worlds and all Lokas under control, who draws all the masculine and feminine beings under her control. By chanting the Bijas Su, Du, Ghe and Va, I invoke their divine powers. Please accept my offerings.
Gauri Mantras for Prosperity and Success
ॐ श्रीं ह्रीं ग्लौं गं गौरि गीं स्वाहा॥
Oṃ Śrīṃ Hrīṃ Glauṃ Gaṃ Gauri Gīṃ Svāhā॥
O Goddess Gauri, invoking the power of Srim, Hrim, Glaum, Gam and Gim Bijas which represent the prosperity, attraction, success, removal of obstacles, and divine power. I offer my offerings; may they be accepted.
ॐ गौर्यै नमः॥
Oṃ Gauryai Namaḥ॥
Salutations to Goddess Gauri
Shapavimochana Gauri Mantra
ॐ ह्रीं शिवं गौरि भृगोः शापं मोचय मोचय स्वाहा ॥
Oṃ Hrīṃ Śivaṃ Gauri Bhṛgoḥ Śāpaṃ Mocaya Mocaya Svāhā ॥
Invoking the power of Maya Bija Hrim, I worship you, the auspicious one, Goddess Gauri. Set free and liberate from the curse of Bhrigu. May the offerings be accepted.
Mantra to Worship Hara Gauri Devi for Longevity
ऐं हीं क्लीं हरिहर विरज्च्याद्याराधिते शिंवशक्ति स्वरूपे स्वाहा ॥
Aiṃ Hrīṃ Klīṃ Harihara Virajcyādya-ārādhite Śivaśakti Svarūpe Svāhā॥
Chanting the Aim, Hrim, and Klim Bijas that represent the power of speech, illusion, and attraction, (I worship you Devi HaraGauri). The one worshipped by Hari, Hara, and Brahma as Shakti. The very embodiment of the energy of Shiva and Shakti. Please accept this offering.
Japa Details of Gauri Mantras
For mantra siddhi of the Trilokya Mohana Gauri Mantra, the practitioner should recite the mantra 10,000 times and perform Dasamsa homa offering milk porridge in the Homa 1000 times. This should be followed by tarpana and other prescribed vidhis.
For other Gauri mantras, the recommended Japa count is 1,25,000 repetitions.
Practitioners can also chant these mantras 108 or 1,008 times daily until their wishes are fulfilled.