Following routers could well be good for your requirements.
1. TP-LINK TL-WR740N:
This TP Link router supports almost all operating systems. It comes with one antennae, 4 LAN, 1 WAN, and RJ 45 WAN/ LAN ports. It provides 150 mbps speed. It should cost you around Rs. 900.
2. D-Link DSL-2750U
Thus router has a maximum speed of 300 mbps. It also comes with a modem. The operating frequency is 2.4 GHz. It is compatible with all operating systems. It has additional features in the form of parental control and firewall.
You can buy it for around Rs. 2000 to 2500.
3. Netgear N 150
This router does not come with a modem. It is compatible with windows, mac and Linux systems. Operating at a frequency if 2.4 GHz, it has a maximum speed of 150 mbps. It comes with an external antennae, 2 LAN, 1 WAN and RJ 45 LAN/ WAN ports. It has denial of service feature and firewall.
You can buy it for around Rs. 1000.
4. Netgear JNR1010
This again lacks modem. It supports major operating systems. The operating frequency is 2.4 GHz. It does have 4 LAN, 1 WAN, RJ 45 LAN/ WAN ports and an external antenna. It does offer DDOS protection.
You can buy it for around Rs. 1500.
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