Declension table of ?mudra

Neuter	Singular	Dual	Plural
Nominative	mudram	mudre	mudrāṇi
Vocative	mudra	mudre	mudrāṇi
Accusative	mudram	mudre	mudrāṇi
Instrumental	mudreṇa	mudrābhyām	mudraiḥ
Dative	mudrāya	mudrābhyām	mudrebhyaḥ
Ablative	mudrāt	mudrābhyām	mudrebhyaḥ
Genitive	mudrasya	mudrayoḥ	mudrāṇām
Locative	mudre	mudrayoḥ	mudreṣu

Compound mudra -

Adverb -mudram -mudrāt