Declension table of gāyatra

Masculine	Singular	Dual	Plural
Nominative	gāyatraḥ	gāyatrau	gāyatrāḥ
Vocative	gāyatra	gāyatrau	gāyatrāḥ
Accusative	gāyatram	gāyatrau	gāyatrān
Instrumental	gāyatreṇa	gāyatrābhyām	gāyatraiḥ gāyatrebhiḥ
Dative	gāyatrāya	gāyatrābhyām	gāyatrebhyaḥ
Ablative	gāyatrāt	gāyatrābhyām	gāyatrebhyaḥ
Genitive	gāyatrasya	gāyatrayoḥ	gāyatrāṇām
Locative	gāyatre	gāyatrayoḥ	gāyatreṣu

Compound gāyatra -

Adverb -gāyatram -gāyatrāt