Same here. I've been getting quite lesser speeds since last 1 week (more or less). I'm in Bangalore residing in the Domlur area.
My plan is 750 Home unlimited
Expected speed: 512kbps
Actual speed: 300kbps (strange thing is that it's capped at 300. I thought the standard value is 320 kbps).
Anyone else experiencing the same issue? I'm using a direct cable connection to my desktop.