Declension table of ?saptaśīrṣan

Masculine	Singular	Dual	Plural
Nominative	saptaśīrṣā	saptaśīrṣāṇau	saptaśīrṣāṇaḥ
Vocative	saptaśīrṣan	saptaśīrṣāṇau	saptaśīrṣāṇaḥ
Accusative	saptaśīrṣāṇam	saptaśīrṣāṇau	saptaśīrṣṇaḥ
Instrumental	saptaśīrṣṇā	saptaśīrṣabhyām	saptaśīrṣabhiḥ
Dative	saptaśīrṣṇe	saptaśīrṣabhyām	saptaśīrṣabhyaḥ
Ablative	saptaśīrṣṇaḥ	saptaśīrṣabhyām	saptaśīrṣabhyaḥ
Genitive	saptaśīrṣṇaḥ	saptaśīrṣṇoḥ	saptaśīrṣṇām
Locative	saptaśīrṣṇi saptaśīrṣaṇi	saptaśīrṣṇoḥ	saptaśīrṣasu

Compound saptaśīrṣa -

Adverb -saptaśīrṣam