Declension table of ?utkaṇṭhayitavya

Masculine	Singular	Dual	Plural
Nominative	utkaṇṭhayitavyaḥ	utkaṇṭhayitavyau	utkaṇṭhayitavyāḥ
Vocative	utkaṇṭhayitavya	utkaṇṭhayitavyau	utkaṇṭhayitavyāḥ
Accusative	utkaṇṭhayitavyam	utkaṇṭhayitavyau	utkaṇṭhayitavyān
Instrumental	utkaṇṭhayitavyena	utkaṇṭhayitavyābhyām	utkaṇṭhayitavyaiḥ utkaṇṭhayitavyebhiḥ
Dative	utkaṇṭhayitavyāya	utkaṇṭhayitavyābhyām	utkaṇṭhayitavyebhyaḥ
Ablative	utkaṇṭhayitavyāt	utkaṇṭhayitavyābhyām	utkaṇṭhayitavyebhyaḥ
Genitive	utkaṇṭhayitavyasya	utkaṇṭhayitavyayoḥ	utkaṇṭhayitavyānām
Locative	utkaṇṭhayitavye	utkaṇṭhayitavyayoḥ	utkaṇṭhayitavyeṣu

Compound utkaṇṭhayitavya -

Adverb -utkaṇṭhayitavyam -utkaṇṭhayitavyāt