Unfair system of icai? Result Mismatch

Its a serious injustice done with the students, who really put on so much hard work for 6 months....two of my friends cleared first grp in the initial list and later on they were declared failed...we all are aware about the system of gracing of marks, but that is done before declaring the result...this list was a gazette list initially declared at 2 pm....which was later modified declaring them to be failed, really unfair on part of those pass students, and institute should be answerable