I have primary and add-on idfc wealth CC with me.
Whenever spends happen from add-on card, it is included within primary card statement.. offcourse as separate entries..
When lounge accesses and statements are shared across primary and add-on so 5000 rupees condition must be also shared instead of being individual..
I am sure about statement part as there will be one statement across all primary+addon cards but doesn't have experience of 5000 rupees condition..
May be someone else can confirm this part..