Declension table of ?sāṃvatsarasūtra

Neuter	Singular	Dual	Plural
Nominative	sāṃvatsarasūtram	sāṃvatsarasūtre	sāṃvatsarasūtrāṇi
Vocative	sāṃvatsarasūtra	sāṃvatsarasūtre	sāṃvatsarasūtrāṇi
Accusative	sāṃvatsarasūtram	sāṃvatsarasūtre	sāṃvatsarasūtrāṇi
Instrumental	sāṃvatsarasūtreṇa	sāṃvatsarasūtrābhyām	sāṃvatsarasūtraiḥ
Dative	sāṃvatsarasūtrāya	sāṃvatsarasūtrābhyām	sāṃvatsarasūtrebhyaḥ
Ablative	sāṃvatsarasūtrāt	sāṃvatsarasūtrābhyām	sāṃvatsarasūtrebhyaḥ
Genitive	sāṃvatsarasūtrasya	sāṃvatsarasūtrayoḥ	sāṃvatsarasūtrāṇām
Locative	sāṃvatsarasūtre	sāṃvatsarasūtrayoḥ	sāṃvatsarasūtreṣu

Compound sāṃvatsarasūtra -

Adverb -sāṃvatsarasūtram -sāṃvatsarasūtrāt