Hi @rajureddi121195,
as @yeasuh said, if you could share more infos, we'd be able to help you better and quicker!
Anyway, you can search all the events that are in Hot, Warm and Cold Buckets, in other words the events that don't exceed the retention period.
So, if the retention period of your index is more than 45 days you can search events in that index.
You can check the retention period of you indexes using the Monitoring Console.
Ciao.
Giuseppe
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