Declension table of ?upasadvan

Masculine	Singular	Dual	Plural
Nominative	upasadvā	upasadvānau	upasadvānaḥ
Vocative	upasadvan	upasadvānau	upasadvānaḥ
Accusative	upasadvānam	upasadvānau	upasadvanaḥ
Instrumental	upasadvanā	upasadvabhyām	upasadvabhiḥ
Dative	upasadvane	upasadvabhyām	upasadvabhyaḥ
Ablative	upasadvanaḥ	upasadvabhyām	upasadvabhyaḥ
Genitive	upasadvanaḥ	upasadvanoḥ	upasadvanām
Locative	upasadvani	upasadvanoḥ	upasadvasu

Compound upasadva -

Adverb -upasadvam