Need suggestions: Used Continental GT worth a buy ?

Recently during my bike hunt, I found a used GT650 up for sale.

Odo shows 3.5k but the owner is asking 290K rupees. I’m confused as I can buy a new 350cc bike in this budget.

I’m saving for a long time for my first bike. Don’t want to mess it up.

What are your suggestions?

Edit 1: 2021 Purchase