See if you were already holding account with Yes Bank and then upgrading then bargaining power is less.
In my case I open account with Yes Bank with 11lac me, 5 lac dad, 50k mom, 50k friend.
They provided information eligibility of marquee is not with grandeur, but if you maintain the funds we can escalate via mail. So, we maintained the account and still maintained, RM boss became good friend of mine, he escalated with the case.
Then we applied for Marquee C2C basis of HDFC Card after 7 days. Approval after 6 days and then card in hand after 2 days.
I am paying US ITR, so they processed on C2C basis. I think so it is rare case because they initially told that Indian ITR is necessary.
In your case, if you open account with 5lac Initial funding cheque, you will get eligible within 1 month for Marquee, but transactions are necessary in those 1 month.
If you have opened with less than 5 lakhs or upgraded directly then ITR of 24 lakhs compulsory or else you will not get marquee card. This is the case because we opened my mom account with 50k, they said we cannot provide Marquee to your mom. You should have open with 5 lakhs initial funding. Then we provided my mother ITR of 30lakh, then they said this can work.
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Moral
If opened with 5 lakh initial funding, change the branch and ask for marquee C2C basis.