Disclaimer : Sorry if this response disappoints you.
Credit limits, in my view, are based on three factors:
1. Credit history, score and financial health of the applicant
2. Underwriting capacity of the issuing bank itself and
3. The risk the issuing bank is willing to take on the facts revealed by the applicant...
There is no direct answer. While some products tend to provide higher limits, it also depends on what kind of credit profile they're targeting.
