Declension table of ?vijñāpaka

Neuter	Singular	Dual	Plural
Nominative	vijñāpakam	vijñāpake	vijñāpakāni
Vocative	vijñāpaka	vijñāpake	vijñāpakāni
Accusative	vijñāpakam	vijñāpake	vijñāpakāni
Instrumental	vijñāpakena	vijñāpakābhyām	vijñāpakaiḥ
Dative	vijñāpakāya	vijñāpakābhyām	vijñāpakebhyaḥ
Ablative	vijñāpakāt	vijñāpakābhyām	vijñāpakebhyaḥ
Genitive	vijñāpakasya	vijñāpakayoḥ	vijñāpakānām
Locative	vijñāpake	vijñāpakayoḥ	vijñāpakeṣu

Compound vijñāpaka -

Adverb -vijñāpakam -vijñāpakāt