Tell him you already have an ont. The
Netlink one is around 1.8k( wifi+rjport) when I bought.i guess the breakup would be as follows - 2k for installation and 2k for the ont.
If it's just a normal ont without wifi,then the price won't be justified.
The only way you can get the best deal is if u have an
adsl line. Then u could take some price from bsnl's first payment.