How is VI and Bsnl network in Vashi?

I'm considering porting from Jio to VI or BSNL. Tried Airtel, but at my home, the download speed is only 0.15 mbps, and the upload speed is 0.05 mbps. Despite raising a complaint with Airtel, I haven't received any response. Jio works well, but I have an international variant of a phone that doesn't support Jio 5G. Paying a premium for a service I can't use doesn't make sense. This leaves VI and BSNL as my options. Before making the switch, I’d like to know how both networks are performing are there any network issues?