Hello Kunal

There are two stages to get new requirements indexed into LQE so that you can query for them:

The first stage is that DNG makes those newly created artefacts available in its TRS.  This is unlikely to take more than a couple of seconds, even on a loaded server.

The second stage is that LQE must inspect the DNG TRS, looking for changes. LQE does this periodically, for all its configured data sources.  DNG must be one of those data sources.  The LQE administrator can configure the frequency of this polling, but it's normally the order of a minute.

If an artefact is not being indexed after several hours or days, I would speculate that LQE is not configured correctly.  You can use the LQE admin pages to confirm that DNG is a data source, and to find out the health of that data source.  That would give you more information to track down the problem.

cheers
-ian