No, I hardly think so. Relationship matters alot and spending too. Based on the ITR I file I should be getting 40k limit but I have 3.5L limit. It's mil card. I have spent may be 1.5L in last 6 months on it. The card is like 4-5 yrs old. It's also LTF.
I am in a process of building solid relationship with HDFC. Opened the account, making 5L FD. Also will upgrade under brother's imperia family banking.
My brother's limit on regalia gold is 8.5L. Card is 10 yrs old (he had regalia before, now regalia gold). His ITR is like 5-6L only (basically handles business but draws small salary as per accountant instructions).