There is no proof because nothing is certain at this point in time. The latest information that we have is that CBSE exams have been cancelled. The CBSE exams that have been scheduled for July 1st to 5th have been cancelled as per CBSE's decision. The same has been conveyed to the Supreme Court as well. Students have an option to appear in the examination only if they wish to. But if they do not wish to appear for the examination, then their performance in the last 2 examinations will be considered to grant them marks.  At this point in time, news about NEET and JEE Mains are all speculative. NTA will also have to consider many other factors before postponing NEET and JEE Mains.  they were waiting to hear from CBSE because the process of calculating the eligibility depends on the decision of CBSE. There might be a change in the schedule of the exam. We do not have clear information as such as of now. There might be an official statement atleast tomorrow or the day after.  Please wait to hear from MHRD regarding this. You can ask either check the official news .We are expecting some information regarding JEE and NEET atleast by the 26th June. If NEET and JEE Mains scheduled for July get postponed, they might happen in August. September might be too late. But again this is just a speculation