Declension table of ?hastakārya

Neuter	Singular	Dual	Plural
Nominative	hastakāryam	hastakārye	hastakāryāṇi
Vocative	hastakārya	hastakārye	hastakāryāṇi
Accusative	hastakāryam	hastakārye	hastakāryāṇi
Instrumental	hastakāryeṇa	hastakāryābhyām	hastakāryaiḥ
Dative	hastakāryāya	hastakāryābhyām	hastakāryebhyaḥ
Ablative	hastakāryāt	hastakāryābhyām	hastakāryebhyaḥ
Genitive	hastakāryasya	hastakāryayoḥ	hastakāryāṇām
Locative	hastakārye	hastakāryayoḥ	hastakāryeṣu

Compound hastakārya -

Adverb -hastakāryam -hastakāryāt