Exam fail: Indian students complain en masse about marking errors in key final exams

New digital marking system is aimed at reducing human errors but many students say it has resulted in wrong grades

National outcry has erupted in India after more than 400,000 students have requested copies of their exam papers and answer sheets amid an outcry over marking errors in the country's most important school-leaving exams.

Within days of the grade 12 exam results being issued, students began reporting marking discrepancies they linked to a new digital marking system.