The Gayatri Mantra for Nandi, Shiva’s Bull Carrier: Nandi is the name for the bull which serves as the mount (Sanskrit: Vahana) of the god Shiva and as the gatekeeper of Shiva and Parvati. In Hindu Religion, he is the chief guru of eighteen masters (18 Siddhar ) including Patanjali and Thirumular. Temples venerating Shiva display stone images of a seated Nandi, generally facing the main shrine. There are also a number of temples dedicated solely to Nandi. Please find Vrishabha (Nandi) Gayatri Mantra also known as Nandikeshwar Gayatri Mantra in Hindi and English lyrics below.
Nandi Gayatri Mantra | नंदी गायत्री मंत्र
ॐ तत्पुरुषाय विद्महे, नन्दिकेश्वराय धीमहि, तन्नो वृषभ: प्रचोदयात् ।।
Om Tatpurushay Vidmahe Nandikeshwaray Dheemahi Tanno Vrishabhah Prachodayat.
ॐ तत्पुरुषाय विद्महे चक्रतुण्डाय धीमहि तन्नो नन्दिः प्रचोदयात् ||
Om Tatpurushay Vidmahe Chakratunday Dheemahi Tanno Nandih Prachodayat.
ॐ शिववाहनाय विद्महे तुण्डाय धीमहि, तन्नो नन्दी: प्रचोदयात!
Om Shivabhahanaya Vidhmahe Tundaya Dheemahe. Thanno Nandi Prachodayath
Meaning: Om. Let me meditate on that great living being, Oh, Lord of devas, give me higher intellect, And let the God Nandi illuminate my mind.

Benefits of Nandi Gayatri Mantra
नंदी गायत्री मंत्र का पाठ बहुत ही शुभ फलदायक है. महादेव शिव जी के अनन्य सेवक नंदी जी की स्तुति और आराधना करने से महादेव शिव की भी कृपा प्राप्त होती है. मन में शान्ति आती है. जीवन सुख और शान्ति से बीतता है.
Nandi is the name of the gate- guardian deity of Kailasa, the abode of Lord Shiva. He is usually depicted as a bull which also serves as the mount (Sanskrit: Vahana) to the god Shiva. According to Saivite tradition, he is considered as the chief guru of eight disciples of Nandinatha Sampradaya – Sanaka, Sanatana, Sanandana, Sanatkumara, Tirumular, Vyagrapada, Patanjali and Sivayoga Muni who were send to eight directions to spread the wisdom of Shaivism
How to Chant Nandi Gayatri Mantra
Chant rhythmically and with clear pronunciation and intensity of Feeling Nandi Gayatri Mantra. Number of Times to Chant : 9, 11, 108, or 1008 times
Nandikeshwara Gayatri Mantra – नंदिकेश्वर गायत्री मंत्र