Declension table of ?tāttvika

Neuter	Singular	Dual	Plural
Nominative	tāttvikam	tāttvike	tāttvikāni
Vocative	tāttvika	tāttvike	tāttvikāni
Accusative	tāttvikam	tāttvike	tāttvikāni
Instrumental	tāttvikena	tāttvikābhyām	tāttvikaiḥ
Dative	tāttvikāya	tāttvikābhyām	tāttvikebhyaḥ
Ablative	tāttvikāt	tāttvikābhyām	tāttvikebhyaḥ
Genitive	tāttvikasya	tāttvikayoḥ	tāttvikānām
Locative	tāttvike	tāttvikayoḥ	tāttvikeṣu

Compound tāttvika -

Adverb -tāttvikam -tāttvikāt