Declension table of ?sandhyānirṇaya

Masculine	Singular	Dual	Plural
Nominative	sandhyānirṇayaḥ	sandhyānirṇayau	sandhyānirṇayāḥ
Vocative	sandhyānirṇaya	sandhyānirṇayau	sandhyānirṇayāḥ
Accusative	sandhyānirṇayam	sandhyānirṇayau	sandhyānirṇayān
Instrumental	sandhyānirṇayena	sandhyānirṇayābhyām	sandhyānirṇayaiḥ sandhyānirṇayebhiḥ
Dative	sandhyānirṇayāya	sandhyānirṇayābhyām	sandhyānirṇayebhyaḥ
Ablative	sandhyānirṇayāt	sandhyānirṇayābhyām	sandhyānirṇayebhyaḥ
Genitive	sandhyānirṇayasya	sandhyānirṇayayoḥ	sandhyānirṇayānām
Locative	sandhyānirṇaye	sandhyānirṇayayoḥ	sandhyānirṇayeṣu

Compound sandhyānirṇaya -

Adverb -sandhyānirṇayam -sandhyānirṇayāt