Given the shitty packet loss with almost every ISP, I am amazed how good the foundation of Airtel is. Like it never goes down and 0% packet loss always. Given, their copper wires are at least 10 years old in my area, it's even more impressive.
I remember facing massive packet loss on Airtel too at times when I was using them as primary connection. But yes, it's still impressive how reliable it is. But for me it is painfully useless because connection becomes useless if I try to load anything.
Sigh. Should be better than adsl in any case. It has become mostly useless. Even Reliance Broadband was not this bad. Uploaded 250GB on Google Drive on it without noticing any degradation in browsing performance.