Declension table of ?nakṣatrasaṃvatsara

Masculine	Singular	Dual	Plural
Nominative	nakṣatrasaṃvatsaraḥ	nakṣatrasaṃvatsarau	nakṣatrasaṃvatsarāḥ
Vocative	nakṣatrasaṃvatsara	nakṣatrasaṃvatsarau	nakṣatrasaṃvatsarāḥ
Accusative	nakṣatrasaṃvatsaram	nakṣatrasaṃvatsarau	nakṣatrasaṃvatsarān
Instrumental	nakṣatrasaṃvatsareṇa	nakṣatrasaṃvatsarābhyām	nakṣatrasaṃvatsaraiḥ nakṣatrasaṃvatsarebhiḥ
Dative	nakṣatrasaṃvatsarāya	nakṣatrasaṃvatsarābhyām	nakṣatrasaṃvatsarebhyaḥ
Ablative	nakṣatrasaṃvatsarāt	nakṣatrasaṃvatsarābhyām	nakṣatrasaṃvatsarebhyaḥ
Genitive	nakṣatrasaṃvatsarasya	nakṣatrasaṃvatsarayoḥ	nakṣatrasaṃvatsarāṇām
Locative	nakṣatrasaṃvatsare	nakṣatrasaṃvatsarayoḥ	nakṣatrasaṃvatsareṣu

Compound nakṣatrasaṃvatsara -

Adverb -nakṣatrasaṃvatsaram -nakṣatrasaṃvatsarāt