Declension table of ?ṣaṇḍhayitavya

Neuter	Singular	Dual	Plural
Nominative	ṣaṇḍhayitavyam	ṣaṇḍhayitavye	ṣaṇḍhayitavyāni
Vocative	ṣaṇḍhayitavya	ṣaṇḍhayitavye	ṣaṇḍhayitavyāni
Accusative	ṣaṇḍhayitavyam	ṣaṇḍhayitavye	ṣaṇḍhayitavyāni
Instrumental	ṣaṇḍhayitavyena	ṣaṇḍhayitavyābhyām	ṣaṇḍhayitavyaiḥ
Dative	ṣaṇḍhayitavyāya	ṣaṇḍhayitavyābhyām	ṣaṇḍhayitavyebhyaḥ
Ablative	ṣaṇḍhayitavyāt	ṣaṇḍhayitavyābhyām	ṣaṇḍhayitavyebhyaḥ
Genitive	ṣaṇḍhayitavyasya	ṣaṇḍhayitavyayoḥ	ṣaṇḍhayitavyānām
Locative	ṣaṇḍhayitavye	ṣaṇḍhayitavyayoḥ	ṣaṇḍhayitavyeṣu

Compound ṣaṇḍhayitavya -

Adverb -ṣaṇḍhayitavyam -ṣaṇḍhayitavyāt