The following day, Sunday, Del Pilar and his men stationed themselves at the Church as soon as the Mass was about to begin.

When the men who were dressed in their Sunday best got close to the church doors, they surprised the Spanish troops with a shot to the sentry guarding the convent.

Del Pilar himself began shooting at the guards who were about to station to the windows, forcing the Spanish soldiers to leave and abandon their guns.

The attack was successfully carried out with the capture of 14 Mauser rifles and other supplies.

Shortly thereafter, Philippine President Emilio Aguinaldo raised Gregorio del Pilar to the rank of lieutenant colonel.