Declension table of ?gāyatrya

Neuter	Singular	Dual	Plural
Nominative	gāyatryam	gāyatrye	gāyatryāṇi
Vocative	gāyatrya	gāyatrye	gāyatryāṇi
Accusative	gāyatryam	gāyatrye	gāyatryāṇi
Instrumental	gāyatryeṇa	gāyatryābhyām	gāyatryaiḥ
Dative	gāyatryāya	gāyatryābhyām	gāyatryebhyaḥ
Ablative	gāyatryāt	gāyatryābhyām	gāyatryebhyaḥ
Genitive	gāyatryasya	gāyatryayoḥ	gāyatryāṇām
Locative	gāyatrye	gāyatryayoḥ	gāyatryeṣu

Compound gāyatrya -

Adverb -gāyatryam -gāyatryāt