I live in Kolkata and use a Wishnet Unlimited Plan from my LCO - Tariff : Wish Net Private Limited : Best Broadband in Kolkta

for the past few days whenever I try to access a few sites, I have to pass the cloudflare security check
One more step
Please complete the security check to access"

The page also says - "If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware."

Being curious I searched about my ip on https://www.whatismyip.com/, & The follwing result was displayed -
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Check The ISP Name
The Ip is also blacklisted in McAfee RBL cidr.bl.mcafee.com
The ip address is different from my wan ip on my router page.
Is my browser hacke or something? Pretty terrified.Please help