Declension table of ?pañcadaśītantra

Neuter	Singular	Dual	Plural
Nominative	pañcadaśītantram	pañcadaśītantre	pañcadaśītantrāṇi
Vocative	pañcadaśītantra	pañcadaśītantre	pañcadaśītantrāṇi
Accusative	pañcadaśītantram	pañcadaśītantre	pañcadaśītantrāṇi
Instrumental	pañcadaśītantreṇa	pañcadaśītantrābhyām	pañcadaśītantraiḥ
Dative	pañcadaśītantrāya	pañcadaśītantrābhyām	pañcadaśītantrebhyaḥ
Ablative	pañcadaśītantrāt	pañcadaśītantrābhyām	pañcadaśītantrebhyaḥ
Genitive	pañcadaśītantrasya	pañcadaśītantrayoḥ	pañcadaśītantrāṇām
Locative	pañcadaśītantre	pañcadaśītantrayoḥ	pañcadaśītantreṣu

Compound pañcadaśītantra -

Adverb -pañcadaśītantram -pañcadaśītantrāt