Bro... Even I had the alumni LTF DCB... They NEVER GAVE IT below 5L. I don't have internal policy proof but below link lists FLOOR limit of card (under which they don't issue it)
Last Updated: April 2019 Just applied for HDFC credit card and wondering what Credit limit you're likely to get? see below for the list of popular HDFC credit cards with expected credit limits in 2019. Beginner & Premium HDFC Credit Card Limits: HDFC Moneyback Credit Card Limit: Rs.25,000
www.cardexpert.in
When I personally wrote to PNO, they told me if my CL falls below 8.5L, they would downgrade infinia to DCB. Assuming same would be for DCB to regalia gold.