Declension table of ?upavasathya

Masculine	Singular	Dual	Plural
Nominative	upavasathyaḥ	upavasathyau	upavasathyāḥ
Vocative	upavasathya	upavasathyau	upavasathyāḥ
Accusative	upavasathyam	upavasathyau	upavasathyān
Instrumental	upavasathyena	upavasathyābhyām	upavasathyaiḥ upavasathyebhiḥ
Dative	upavasathyāya	upavasathyābhyām	upavasathyebhyaḥ
Ablative	upavasathyāt	upavasathyābhyām	upavasathyebhyaḥ
Genitive	upavasathyasya	upavasathyayoḥ	upavasathyānām
Locative	upavasathye	upavasathyayoḥ	upavasathyeṣu

Compound upavasathya -

Adverb -upavasathyam -upavasathyāt