^^
WiFi routers w/o modem are compatible with almost every ISPs. To connect 'em with ISPs like BSNL you need to have a separate modem too. So, you just need to connect the LAN cable from your modem to WiFi RJ-45 port in the router and WiFi will be enabled. And using the rest four LAN ports, you can connect PCs/Laptops through wired connection.
But WiFi routers with modem are compatible only with telecom ISPs like BSNL, MTNL, Airtel, etc. Here you dont need to have an extra modem, just plug in the RJ-11 telephone cable into the given port in the router and you enable internet connection and can access internet just like the above case. But if you ever change your ISP to non-telecom ISPs, these routers wont be of any use.
So, if you already have a modem, I suggest you to go with a 300N Wireless router w/o modem.
For WiFi router w/o modem, this is the cheapest option to be looked at: *www.flipkart.com/tp-link-300mbps-w...6WN2&ref=940c7362-7bf5-40ff-81fa-9fa43c47a665
If you really want one with modem, then this is the cheapest good option: *www.tp-link.com/lk/products/details/?model=TD-W8961ND
Costs around 2.2k locally.
Also look for this model:
www.tp-link.com/lk/products/details/?model=TD-W8960N#fea
AFAIK it can work as a WiFi router with modem and w/o modem too.
It has a LAN-cum-WAN port, so even if you use non telecom ISP, you can still use this wifi router.
Contact your nearest TP-Link distributor and find out the price.
www.tp-link.in/where-to-buy/resellers.aspx
