@Shubham_Jain looking at your payload, you have “Policy ID” as your policy claim, that’s a pretty bad idea, it’s a JSON object, so while keys can indeed be any kind of string, it mght just be easier to use pol or policy.
Now you have set the policy field name in your dashboard to be “policy”, looking at your JWT payload, there is no field called “policy”, but you have one called “Policy ID”, maybe if you rename the payload version to policy, Tyk will be able to find the policy ID that you want to apply to this JWT.