Declension table of ?saṃstara

Masculine	Singular	Dual	Plural
Nominative	saṃstaraḥ	saṃstarau	saṃstarāḥ
Vocative	saṃstara	saṃstarau	saṃstarāḥ
Accusative	saṃstaram	saṃstarau	saṃstarān
Instrumental	saṃstareṇa	saṃstarābhyām	saṃstaraiḥ saṃstarebhiḥ
Dative	saṃstarāya	saṃstarābhyām	saṃstarebhyaḥ
Ablative	saṃstarāt	saṃstarābhyām	saṃstarebhyaḥ
Genitive	saṃstarasya	saṃstarayoḥ	saṃstarāṇām
Locative	saṃstare	saṃstarayoḥ	saṃstareṣu

Compound saṃstara -

Adverb -saṃstaram -saṃstarāt