Declension table of ?bhagavadgītāprasthāna

Neuter	Singular	Dual	Plural
Nominative	bhagavadgītāprasthānam	bhagavadgītāprasthāne	bhagavadgītāprasthānāni
Vocative	bhagavadgītāprasthāna	bhagavadgītāprasthāne	bhagavadgītāprasthānāni
Accusative	bhagavadgītāprasthānam	bhagavadgītāprasthāne	bhagavadgītāprasthānāni
Instrumental	bhagavadgītāprasthānena	bhagavadgītāprasthānābhyām	bhagavadgītāprasthānaiḥ
Dative	bhagavadgītāprasthānāya	bhagavadgītāprasthānābhyām	bhagavadgītāprasthānebhyaḥ
Ablative	bhagavadgītāprasthānāt	bhagavadgītāprasthānābhyām	bhagavadgītāprasthānebhyaḥ
Genitive	bhagavadgītāprasthānasya	bhagavadgītāprasthānayoḥ	bhagavadgītāprasthānānām
Locative	bhagavadgītāprasthāne	bhagavadgītāprasthānayoḥ	bhagavadgītāprasthāneṣu

Compound bhagavadgītāprasthāna -

Adverb -bhagavadgītāprasthānam -bhagavadgītāprasthānāt