Unable to play Minecraft on Jio mobile internet

As the title suggests, I am unable to join online servers using Jio mobile internet for last few months. I haven't tested for JioFibre as I don't have it. Although, I am able to play using VPN but that's too laggy to enjoy playing and I always get disconnected in few minutes. Also, I don't think it's wise to spend money behind premium VPN to access something that's supposed to be legal! Can anyone please tell me if you face the same issue or can anyone suggest a fix? For example, a while ago, when Reddit wasn't working on Jio internet, someone suggested a private DNS, and it was working. Does anyone have some similar 'trick' for Minecraft too? P.s. Getting a wifi connection or changing operator are not a solution (atleast for now). P.s. 2: I just remembered, I can't join any servers but other people can join my private world (I got to know this because a friend joined my world without invite, since bedrock worlds are always multiplayer by default)