Declension table of ?sandhyāśaṅkhadhvani

Masculine	Singular	Dual	Plural
Nominative	sandhyāśaṅkhadhvaniḥ	sandhyāśaṅkhadhvanī	sandhyāśaṅkhadhvanayaḥ
Vocative	sandhyāśaṅkhadhvane	sandhyāśaṅkhadhvanī	sandhyāśaṅkhadhvanayaḥ
Accusative	sandhyāśaṅkhadhvanim	sandhyāśaṅkhadhvanī	sandhyāśaṅkhadhvanīn
Instrumental	sandhyāśaṅkhadhvaninā	sandhyāśaṅkhadhvanibhyām	sandhyāśaṅkhadhvanibhiḥ
Dative	sandhyāśaṅkhadhvanaye	sandhyāśaṅkhadhvanibhyām	sandhyāśaṅkhadhvanibhyaḥ
Ablative	sandhyāśaṅkhadhvaneḥ	sandhyāśaṅkhadhvanibhyām	sandhyāśaṅkhadhvanibhyaḥ
Genitive	sandhyāśaṅkhadhvaneḥ	sandhyāśaṅkhadhvanyoḥ	sandhyāśaṅkhadhvanīnām
Locative	sandhyāśaṅkhadhvanau	sandhyāśaṅkhadhvanyoḥ	sandhyāśaṅkhadhvaniṣu

Compound sandhyāśaṅkhadhvani -

Adverb -sandhyāśaṅkhadhvani