Declension table of ?pratyāhvāna

Neuter	Singular	Dual	Plural
Nominative	pratyāhvānam	pratyāhvāne	pratyāhvānāni
Vocative	pratyāhvāna	pratyāhvāne	pratyāhvānāni
Accusative	pratyāhvānam	pratyāhvāne	pratyāhvānāni
Instrumental	pratyāhvānena	pratyāhvānābhyām	pratyāhvānaiḥ
Dative	pratyāhvānāya	pratyāhvānābhyām	pratyāhvānebhyaḥ
Ablative	pratyāhvānāt	pratyāhvānābhyām	pratyāhvānebhyaḥ
Genitive	pratyāhvānasya	pratyāhvānayoḥ	pratyāhvānānām
Locative	pratyāhvāne	pratyāhvānayoḥ	pratyāhvāneṣu

Compound pratyāhvāna -

Adverb -pratyāhvānam -pratyāhvānāt