Declension table of ?sandhyānyāsa

Masculine	Singular	Dual	Plural
Nominative	sandhyānyāsaḥ	sandhyānyāsau	sandhyānyāsāḥ
Vocative	sandhyānyāsa	sandhyānyāsau	sandhyānyāsāḥ
Accusative	sandhyānyāsam	sandhyānyāsau	sandhyānyāsān
Instrumental	sandhyānyāsena	sandhyānyāsābhyām	sandhyānyāsaiḥ sandhyānyāsebhiḥ
Dative	sandhyānyāsāya	sandhyānyāsābhyām	sandhyānyāsebhyaḥ
Ablative	sandhyānyāsāt	sandhyānyāsābhyām	sandhyānyāsebhyaḥ
Genitive	sandhyānyāsasya	sandhyānyāsayoḥ	sandhyānyāsānām
Locative	sandhyānyāse	sandhyānyāsayoḥ	sandhyānyāseṣu

Compound sandhyānyāsa -

Adverb -sandhyānyāsam -sandhyānyāsāt