Anyone using IPv6 on Airtel Broadband?

Yesterday, I spoke to customer care regarding IPv6 availability and they told that after 1-2 months we have an option to pay ₹900 for the fiber modem and the line will be rewired to fiber, which will support IPv6. I'm not sure about this because a week before the local service engineer told me that IPv6 isn't available yet on airtel and there's nothing planned to support it as of now.

So is anyone here using IPv6 on airtel broadband?