The Maharashtra State Board may hold back the Higher Secondary Certificate (HSC) results of 299 students from Mumbai who are studying Physics, Chemistry and Maths (PCM). The show cause notice has been sent to colleges for allowing students who have taken general Maths in the School Secondary Certificate (SSC) exams and then went forward to opt for mathematics during HSC. These students will get their HSC results only after they will re-appear for SSC- higher Maths paper in July.