Declension table of ?tandravāya

Masculine	Singular	Dual	Plural
Nominative	tandravāyaḥ	tandravāyau	tandravāyāḥ
Vocative	tandravāya	tandravāyau	tandravāyāḥ
Accusative	tandravāyam	tandravāyau	tandravāyān
Instrumental	tandravāyeṇa	tandravāyābhyām	tandravāyaiḥ tandravāyebhiḥ
Dative	tandravāyāya	tandravāyābhyām	tandravāyebhyaḥ
Ablative	tandravāyāt	tandravāyābhyām	tandravāyebhyaḥ
Genitive	tandravāyasya	tandravāyayoḥ	tandravāyāṇām
Locative	tandravāye	tandravāyayoḥ	tandravāyeṣu

Compound tandravāya -

Adverb -tandravāyam -tandravāyāt