Interesting. I asked for replacement of Nokia router and they asked for 950rs as my router was more than 1 year old. They said warranty is only for 1 yeari get what you mean tbh. but in case of airtel, airtel is responsible for the router these days from my understanding. you do not pay if it goes bad or starts giving issues. airtel has replaced my own router like 3 times in the last two years. it really does not bother me if the model is new or old or used or scratched as long as they are responsible for it and it works.