Declension table of ?gayāśīrṣaparvata

Masculine	Singular	Dual	Plural
Nominative	gayāśīrṣaparvataḥ	gayāśīrṣaparvatau	gayāśīrṣaparvatāḥ
Vocative	gayāśīrṣaparvata	gayāśīrṣaparvatau	gayāśīrṣaparvatāḥ
Accusative	gayāśīrṣaparvatam	gayāśīrṣaparvatau	gayāśīrṣaparvatān
Instrumental	gayāśīrṣaparvatena	gayāśīrṣaparvatābhyām	gayāśīrṣaparvataiḥ
Dative	gayāśīrṣaparvatāya	gayāśīrṣaparvatābhyām	gayāśīrṣaparvatebhyaḥ
Ablative	gayāśīrṣaparvatāt	gayāśīrṣaparvatābhyām	gayāśīrṣaparvatebhyaḥ
Genitive	gayāśīrṣaparvatasya	gayāśīrṣaparvatayoḥ	gayāśīrṣaparvatānām
Locative	gayāśīrṣaparvate	gayāśīrṣaparvatayoḥ	gayāśīrṣaparvateṣu

Compound gayāśīrṣaparvata -

Adverb -gayāśīrṣaparvatam -gayāśīrṣaparvatāt