Independent Bank Corp., parent of Rockland Trust, and Central Bancorp Inc. say the lawsuit brought against the two banks regarding their proposed merger has been dismissed by mutual agreement.

A stipulation of dismissal has been filed by the banks and Rational Strategies Fund, which brought the suit, in Middlesex County Superior Court, the banks said in a statement.

The suit was a class action against Somerville-based Central, each of Central’s directors, and Independent.

The Stipulation dismisses the lawsuit with prejudice and provides that the parties will bear their own attorneys’ fees and costs, the banks said.

Filed on behalf of Rational Strategies Fund and "others similarly situated" as Central Bancorp shareholders, the complaint alleged the $55 million acquisition of Central by Independent Bank Corp. was orchestrated by Central Chairman and CEO John D. Doherty and President and COO William P. Morrissey, "for their own personal benefit."