Since it is pre-approved and it's a secondary cc I got it instantly, waiting for physical card.
As you know apart from Unnati FD based CC (looks like discontinued now not sure ) all are chargeable cc in sbi until or unless some how you get LTF.
I guess, Cibil will definitely hit once whenever a card is provided even if it is pre-approved. I will update once I get the new cibil report here.
I heard that add-on cards are not chargeable but I am new to that add-on card concept, since in tf community suggested to go with secondary card I have gone through it.
If you use referral code while applying via sbi sprint portal you can get Rs500 on top of anything, may be that way you could recover some amount