Help me to buy best Adsl2 300mbps wifi modem/router

Please help me. Which wifi modem adsl2 300mbps is best and trusted. My old Nokia Siemens network 1600 modem is not working it restarts again and again, and does not connect either pc or wifi. I contacted Bsnl they said that problem is with your modem & you have to change the modem, they advised me to take the tp link 8961n 300mbps modem for ₹ 1900 with 100₹ service charge include. Now I want your help friends suggest me a best adsl2 modem 300mbps. Thanks in advance