Declension table of ?dīrghadarśana

Masculine	Singular	Dual	Plural
Nominative	dīrghadarśanaḥ	dīrghadarśanau	dīrghadarśanāḥ
Vocative	dīrghadarśana	dīrghadarśanau	dīrghadarśanāḥ
Accusative	dīrghadarśanam	dīrghadarśanau	dīrghadarśanān
Instrumental	dīrghadarśanena	dīrghadarśanābhyām	dīrghadarśanaiḥ dīrghadarśanebhiḥ
Dative	dīrghadarśanāya	dīrghadarśanābhyām	dīrghadarśanebhyaḥ
Ablative	dīrghadarśanāt	dīrghadarśanābhyām	dīrghadarśanebhyaḥ
Genitive	dīrghadarśanasya	dīrghadarśanayoḥ	dīrghadarśanānām
Locative	dīrghadarśane	dīrghadarśanayoḥ	dīrghadarśaneṣu

Compound dīrghadarśana -

Adverb -dīrghadarśanam -dīrghadarśanāt