Hi @ujjwalchandra,
Typically internal traffic is a fairly small list of IP ranges, so I don't think there is an upload process. And this does have to be set per suite, unfortunately.
IP Exclusion and Bot Filtering are similar, but with some key differences.
Internal IP Exclusion will not appear in any report. As this is considered data that is not worth reporting on (as it's internal to your organization)
Bot Traffic however, while excluded from all your standard reporting, has a few dedicated dimensions and metrics that can be used to see what pages or what bots have been hitting your site.

The only "standard" dimension that works with these is Pages, and when you pair Pages with the Bot Page Views metric, you can see how many times each page was hit by a bot.
The Bot Name dimension will populate with bot standard IAB Bot Names (if you have that enable - which is highly recommended), and with the custom name you have applied to each bot rule.
Both Bot Exclusions and Internal IP Filters have to be set per suite... however, Bot Exclusions can at least be set across multiple suites at the same time. In Report Suite Manager, you can select multiple suites, and go to Edit Settings > General > Bot Rules
However, Internal IP Filters are found under Admin > All Admin > Exclude by IP
The selected suite is available in the top right corner, but only one can be selected at a time 😞
I guess they figure this doesn't get updated often enough, so setting it per suite is okay... it would be lovely to have a bulk editor.