Will there be any problem if I once again register for the application in Iisc institute....
Hii
I hope you filled with form of IISC,Bangalore. Just to answer your question, as long as you haven't made the payment of the application form, you can always edit the application form in case of any mistake. Secondly, one application is sufficient from an individual. Double application form of same individual will not be valid.
All the best.