Declension table of ?karasūtra

Neuter	Singular	Dual	Plural
Nominative	karasūtram	karasūtre	karasūtrāṇi
Vocative	karasūtra	karasūtre	karasūtrāṇi
Accusative	karasūtram	karasūtre	karasūtrāṇi
Instrumental	karasūtreṇa	karasūtrābhyām	karasūtraiḥ
Dative	karasūtrāya	karasūtrābhyām	karasūtrebhyaḥ
Ablative	karasūtrāt	karasūtrābhyām	karasūtrebhyaḥ
Genitive	karasūtrasya	karasūtrayoḥ	karasūtrāṇām
Locative	karasūtre	karasūtrayoḥ	karasūtreṣu

Compound karasūtra -

Adverb -karasūtram -karasūtrāt