my portfolio:
Amex Plat charge (my goto card)
Amex plat travel (use this only for the 4L milestone)
Amex Gold charge (use this only to get the 1k bonus per month)
Citi Prestige (use this only for insurance payments - wealth customer hence no limits on points earned on premium payments)
HDFC...
I don't think your CC accounts will be delinked from your net banking. you will still be able to view them on your app / net banking portal. customer ID should remain the same.