Declension table of ?upasadvrata

Neuter	Singular	Dual	Plural
Nominative	upasadvratam	upasadvrate	upasadvratāni
Vocative	upasadvrata	upasadvrate	upasadvratāni
Accusative	upasadvratam	upasadvrate	upasadvratāni
Instrumental	upasadvratena	upasadvratābhyām	upasadvrataiḥ
Dative	upasadvratāya	upasadvratābhyām	upasadvratebhyaḥ
Ablative	upasadvratāt	upasadvratābhyām	upasadvratebhyaḥ
Genitive	upasadvratasya	upasadvratayoḥ	upasadvratānām
Locative	upasadvrate	upasadvratayoḥ	upasadvrateṣu

Compound upasadvrata -

Adverb -upasadvratam -upasadvratāt