Hello everyone , after setting retention time 1 day ,there is no real time segment available while i see offline segment there after setting same retention period - 1 day.

this is an offline table, you need to create a realtime table. See here for hybrid table: https://docs.pinot.apache.org/basics/components/table#hybrid-table

I have created both realtime as well as offline table . Realtime segment has deleted with retention time value - 1 day while offline table segment is not deleted with retention time value - 2 days (after 2 days)

What's the segment end time and when the retention manager is kicked in? Can you check the controller log