Declension table of ?pramāṇastha

Masculine	Singular	Dual	Plural
Nominative	pramāṇasthaḥ	pramāṇasthau	pramāṇasthāḥ
Vocative	pramāṇastha	pramāṇasthau	pramāṇasthāḥ
Accusative	pramāṇastham	pramāṇasthau	pramāṇasthān
Instrumental	pramāṇasthena	pramāṇasthābhyām	pramāṇasthaiḥ pramāṇasthebhiḥ
Dative	pramāṇasthāya	pramāṇasthābhyām	pramāṇasthebhyaḥ
Ablative	pramāṇasthāt	pramāṇasthābhyām	pramāṇasthebhyaḥ
Genitive	pramāṇasthasya	pramāṇasthayoḥ	pramāṇasthānām
Locative	pramāṇasthe	pramāṇasthayoḥ	pramāṇastheṣu

Compound pramāṇastha -

Adverb -pramāṇastham -pramāṇasthāt