Hi Baskar,
If Lynn’s reply did not help then the following may be what you have encountered. Depending on which product you select in the download centre 9.1 may not be available
If you have access to
CA Application Performance Management - MULTI-PLATFORM
then 9.1 is listed. However if you only have access to
CA Application Performance Management Agent - MULTI-PLATFORM
Then currently that does not have 9.1 as an option – this is being addressed and I understand should be resolved by the end of this week – that is not guaranteed though.
If you only have product CA Application Performance Management Agent - MULTI-PLATFORM available and have an urgent requirement then I would suggest raising case and we can upload the installer to the case for you to download from there.
Thanks
Mike