Plural marking is achieved in Diu Portuguese through the use of a plural word tud preposed to the noun. Pluralization is only one of the functions of this element, which doubles as a universal quantifier meaning 'all'. This element can alternatively be considered a 'collectivizer' considering that, following the typology of nouns in Rijkhoff (2002), nouns in this language are "set nouns", i.e. neither plural nor singular but rather unspecified as to number.
Pluralization is variable for all pluralizable nouns, though favoured by specificity. As a result, pluralizing tud overwhelmingly occurs in association with a demonstrative, which is the standard marker of specificity in Diu Indo-Portuguese.
Source: Cardoso 2009: 120
Source: Cardoso 2009: 173
Source: Cardoso 2009: 214
Source: Cardoso 2009: 196