The president and two managers at New Bedford based Michael Bianco, Inc. which made national headlines when federal agents arrested 360 illegal immigrants there in March, were indicted yesterday in federal court.

Company president Francesco Insolia, 50 of Pembroke, production manager, Dilia Costa, 55, of New Bedford, and contract specialist Gloria Melo, 41, of Fall River were all charged with two counts of conspiring to harbor, or conceal or shield illegal aliens from detection as well as other violations of immigration laws, federal prosecutors said in a statement.

“The defendants knowingly employed aliens, who were illegal or not authorized to work in the United States,â€