3g dongle to wi-fi

hey guys i want to buy a wifi router in which when a 3G USB modem is plugged into the router the broadband connection can be shared through wi-fi... where do i find it? plz help me in finding it if it is on flipkart or any indian website or if can buy it in patna...its very urgent plz..

look i found 1, help me find some more please..
*www.flipkart.com/tp-link-portable-3g-3-75g-wireless-n-router/p/itmd8fsebcjkr94y?pid=RTRD8FNGAPAKBDPC&icmpid=reco_pp_personalhistoryFooter_router_1_nr