Need a wifi router

Dlink Wireless G ADSL2+ Router DSL-2640U
it costs slightly above 3K but its a good ADSL wifi router. you will have to increase your budget to get a wifi N ADSL wifi router.

If majority of devices in your are 802.11n devices, then go for 802.11n router. I would suggest Linksys WAG120N wireless gateway (modem+router).

Got Linksys WAG120N for 2.6k, setup was pretty simple.
Thanks everybody.

Using Netgear DG834G V.3 for last 3 years. Great Wi-Fi router at very cheap budget.

To use a n series router all devices should be wireless n compatible to achieve n speeds or else they would use the b or g signal. Check if your devices are compatible as the 1k price increase is not justified otherwise.