But that is true other way round as well.Currently you are getting hdfc diners p which is core credit card ltf. You might not able be get core card if you get co branded first.
Up to you but I am pretty sure hdfc swiggy would be easy to get as Ltf compared to dcp.
So my preference is first dcp (core) then try for co branded. Try after 1 month itself.
But that is true other way round as well.Currently you are getting hdfc diners p which is core credit card ltf. You might not able be get core card if you get co branded first.
Up to you but I am pretty sure hdfc swiggy would be easy to get as Ltf compared to dcp.
So my preference is first dcp (core) then try for co branded. Try after 1 month itself.