Declension table of ?sandhvāna

Masculine	Singular	Dual	Plural
Nominative	sandhvānaḥ	sandhvānau	sandhvānāḥ
Vocative	sandhvāna	sandhvānau	sandhvānāḥ
Accusative	sandhvānam	sandhvānau	sandhvānān
Instrumental	sandhvānena	sandhvānābhyām	sandhvānaiḥ sandhvānebhiḥ
Dative	sandhvānāya	sandhvānābhyām	sandhvānebhyaḥ
Ablative	sandhvānāt	sandhvānābhyām	sandhvānebhyaḥ
Genitive	sandhvānasya	sandhvānayoḥ	sandhvānānām
Locative	sandhvāne	sandhvānayoḥ	sandhvāneṣu

Compound sandhvāna -

Adverb -sandhvānam -sandhvānāt