Declension table of ?suratastha

Masculine	Singular	Dual	Plural
Nominative	suratasthaḥ	suratasthau	suratasthāḥ
Vocative	suratastha	suratasthau	suratasthāḥ
Accusative	suratastham	suratasthau	suratasthān
Instrumental	suratasthena	suratasthābhyām	suratasthaiḥ suratasthebhiḥ
Dative	suratasthāya	suratasthābhyām	suratasthebhyaḥ
Ablative	suratasthāt	suratasthābhyām	suratasthebhyaḥ
Genitive	suratasthasya	suratasthayoḥ	suratasthānām
Locative	suratasthe	suratasthayoḥ	suratastheṣu

Compound suratastha -

Adverb -suratastham -suratasthāt