Declension table of ?gurudīkṣātantra

Neuter	Singular	Dual	Plural
Nominative	gurudīkṣātantram	gurudīkṣātantre	gurudīkṣātantrāṇi
Vocative	gurudīkṣātantra	gurudīkṣātantre	gurudīkṣātantrāṇi
Accusative	gurudīkṣātantram	gurudīkṣātantre	gurudīkṣātantrāṇi
Instrumental	gurudīkṣātantreṇa	gurudīkṣātantrābhyām	gurudīkṣātantraiḥ
Dative	gurudīkṣātantrāya	gurudīkṣātantrābhyām	gurudīkṣātantrebhyaḥ
Ablative	gurudīkṣātantrāt	gurudīkṣātantrābhyām	gurudīkṣātantrebhyaḥ
Genitive	gurudīkṣātantrasya	gurudīkṣātantrayoḥ	gurudīkṣātantrāṇām
Locative	gurudīkṣātantre	gurudīkṣātantrayoḥ	gurudīkṣātantreṣu

Compound gurudīkṣātantra -

Adverb -gurudīkṣātantram -gurudīkṣātantrāt