The officials said some mark sheets were found to have not signed by the Director of School Education. As an alternative arrangement the online copies of the mark sheets of the 300 students were attested, they added.

Meanwhile, the Anna University officials said the students could now apply for professional colleges with whatever documents they had and the originals should be produced later only.

The mark sheets, which were not signed had been sent to Chennai to obtain the Director's signature, he said, and assured all the students would get their mark sheets within two days.