Hi @manoj_verma1,
First you need to use a Deserialize Json activity(https://docs.uipath.com/activities/docs/deserialize-json), where the input is your json as string.
There you will define an output variable, let’s say jsonObject.
Then, you can access the batchId property like this:
jsonObject("batchId").toString
If this solves your problem, kindly mark this post as solution.
Thanks!
Here you can check a similar post, if you need: How to quickly get the value from a json