Declension table of ?bhagavadgītārahasya

Neuter	Singular	Dual	Plural
Nominative	bhagavadgītārahasyam	bhagavadgītārahasye	bhagavadgītārahasyāni
Vocative	bhagavadgītārahasya	bhagavadgītārahasye	bhagavadgītārahasyāni
Accusative	bhagavadgītārahasyam	bhagavadgītārahasye	bhagavadgītārahasyāni
Instrumental	bhagavadgītārahasyena	bhagavadgītārahasyābhyām	bhagavadgītārahasyaiḥ
Dative	bhagavadgītārahasyāya	bhagavadgītārahasyābhyām	bhagavadgītārahasyebhyaḥ
Ablative	bhagavadgītārahasyāt	bhagavadgītārahasyābhyām	bhagavadgītārahasyebhyaḥ
Genitive	bhagavadgītārahasyasya	bhagavadgītārahasyayoḥ	bhagavadgītārahasyānām
Locative	bhagavadgītārahasye	bhagavadgītārahasyayoḥ	bhagavadgītārahasyeṣu

Compound bhagavadgītārahasya -

Adverb -bhagavadgītārahasyam -bhagavadgītārahasyāt