hello anusha !!
i am afraid that you may not be able to upload your 12th marksheet after submitting the application form of IISER. If there is a change in the percentage of the marks you secured then there is slight chance for you to do so.
you need to upload your original mark sheet in the application portal but the percentage in the application form should be the revised one. The revised marks statement from your board conrming the change of marks must be sent to ask-jac2021[AT]iiserkol.ac.in with a subject line “Revised Marks”. You should also mention your application number in the subject line. Please check the timelines in the following link :
http://www.iiseradmission.in/dates.html
if that’s not the case then kindly mail your problem to the following :
ask-jac2021[AT]iiserkol.ac.in
for more details see :
https://engineering.careers360.com/articles/iiser-admission
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