Declension table of sandhya

Masculine	Singular	Dual	Plural
Nominative	sandhyaḥ	sandhyau	sandhyāḥ
Vocative	sandhya	sandhyau	sandhyāḥ
Accusative	sandhyam	sandhyau	sandhyān
Instrumental	sandhyena	sandhyābhyām	sandhyaiḥ sandhyebhiḥ
Dative	sandhyāya	sandhyābhyām	sandhyebhyaḥ
Ablative	sandhyāt	sandhyābhyām	sandhyebhyaḥ
Genitive	sandhyasya	sandhyayoḥ	sandhyānām
Locative	sandhye	sandhyayoḥ	sandhyeṣu

Compound sandhya -

Adverb -sandhyam -sandhyāt