Parents demanded that if necessary, re-exam may be conducted only for students of Delhi region only, as the question paper was leaked out in Delhi region.
Six other students were also detained by the police on March 30 for questioning in connection with the case.
With the class 12 examinations concluding on April 13, teachers and parents had hoped that the rescheduled date for exam would be held sooner.
Anil Swarup, School Education Secretary in the HRD Ministry said the Class 10 mathematics question paper was leaked only in Delhi and Haryana as there was no evidence that it was a pan-India affair.
With students protesting over the leaks of Class 10 Maths and Class 12 Economics question papers, the Delhi Police has rounded up 30 persons for interrogation.
Meanwhile, the school managements are saying there is no other way than conducting the exams again, though there is no role of the state in the issue as the paper was not leaked here.