Originally Posted by
GuyFromBOM
I doubt if the supplementary card holder would enjoy the excess baggage allowance. Unless her personal JP # is embossed on the supplementary card, she wouldn't be able to claim it at the check-in desk.
And AFAIK (at least the 2 supplementary cards issued on my JP CC), don't have any FFP # embossed on it. But that doesn't mean that she shouldn't make an attempt.!!

Make sure her JP number is not mentioned on the ticket. My parents have a supplementary card and they have enjoyed extra baggage allowance as well as lounge access, but with ICICI Jet card. I assume HDFC card would be no different.
P.S - Amex refused my wife entry to the lounge with a supplementary card.