Need credit line for the biz.

I have been banking with Axis bank and have a turnover of few Crs in my biz but these guys don't provide an unsecured OD or credit line. Whereas, ICICI has a product that does that but I'm a new customer to them so wouldn't open it up to me unless for a small amount like 1-2 lacs (I've spoken to them) they need time and transactions for OD to go about 15-25lacs which is what I need. Times are tough and my credit score has fallen due to some reason so RazorpayX wouldn't give me LOC or OD either. any other options I can look at? Ready to open new current account with anyone who does.