Hello,

May be you have not read the eligibility criteria that is stated in the IISERs BS-MS Admission Portal. In order to apply for admission to BS-MS of IISERs you should have passed Class 12 wih Science stream. So those candidates who satisfy these conditions can apply as well as attend the IAT. So eventhough you have 78.2% marks in Class 12, you have passed. That is the reason why you are able to download your hall ticket. But if any student qualifies the examination, he/she will be considered for admission only if they satisfy the cut-off condition as per their board of pass out. For CBSE this is 431 for General.