Central Board Of Secondary Education [CBSE] — Physics Exam Leak

Physics paper was leaked and that's really not fair for the students who has done the exam on their own! In some schools teacher came and had told the right answers to the students! Is this an exam? And what you are doing! No flying squads no observers nothing. If no action will be taken against this then we students will not give the exam. Hope action will be taken against the persons who are responsible for this and cancel the Physics exam as it is leaked!
Thank you