TP-LINK TD-W8968 300 Mbps Wireless N USB ADSL2 Modem Router Rs.1765 - Flipkart

Has usb for 3G modem / printer or HDD.
Has WAN port + ADSL hence can be used for any type of internet connection.
Good range (2 X 5dbi antenas).

TP-LINK TD-W8968 Rs.1765

D-Link Cloud Gigabit Router N300 DIR-636L Rs. 2390 – Amazon

Amazon has discounted D-Link Cloud Gigabit Router N300 DIR-636L to Rs. 2390. Features Upto 300Mbps for web browsing, e-mailing, and video chatting, High-powered wireless N300 signal for whole home coverage, Monitor and manage your network from anywhere, Stream and share files and media from a connected USB drive & Four Gigabit Ethernet ports for superior device connectivity.

Buy: D-Link Cloud Gigabit Router N300 DIR-636L | More Networking Devices

D-Link DWR710 Lepetit 3G USB Modem plus Hard Wi-Fi Router Rs. 2145 - Amazon

Amazon has discounted D-Link DWR710 Lepetit 3G USB Modem plus Hard Wi-Fi Router to Rs. 2145 
Buy: D-Link DWR710 Lepetit 3G USB Modem plus Hard Wi-Fi Router Rs. 2145 (Amazon)

Wireless Router TP-Link TL-WR740N Rs. 821, D-Link DIR-600L Rs. 904, Netgear JNR1010 Rs. 999 – Amazon

Wireless Router deals from Amazon.

Buy Wireless Router: TP-Link TL-WR740N Rs. 821 | D-Link DIR-600L Rs. 904 | Netgear JNR1010 Rs. 999 |Networking Devices

D-Link 14.4Mbps USB Data Card DWM-156 Rs. 999 – Amazon

Amazon has discounted D-Link 14.4Mbps USB Data Card DWM-156 to Rs. 999. Features allows users with a computer to connect to worldwide mobile broadband networks, While connected, users can transfer data, stream media, and send SMS messages & A built-in MicroSD card reader slot can be used for optional removable storage.

Buy: D-Link 14.4Mbps USB Data Card DWM-156 | More Wireless USB Adapters

TP-Link Wireless USB Adapter TL-WN721N Rs. 498 - Amazon

Amazon has discounted TP-Link Wireless USB Adapter TL-WN721N to Rs. 498
Buy : TP-Link Wireless USB Adapter TL-WN721N Rs. 498  | More Computer Accessories

D-Link DWR-113 3G Wi-Fi Router Rs. 1631 – Amazon

Amazon has discounted D-Link DWR-113 3G Wi-Fi Router to Rs. 1631. Features Portable mobile wireless router, HSPA+ Connection Sharing, 3G Modem Backup, High-speed Wi-Fi 150N & LED Status Indicators.

Buy: D-Link DWR-113 3G Wi-Fi Router | More Networking Devices

TP-Link 150Mbps Wireless N Router TL-WR720N Rs. 753 – Amazon

Amazon has discounted TP-Link 150Mbps Wireless N Router TL-WR720N to Rs. 753. Features Setup wireless security encryption at a push of the WPS button, Supports Multiple SSIDs, WDS Wireless Bridge, IP based Bandwidth Control & Live Parental Controls.

Buy: TP-Link 150Mbps Wireless N Router TL-WR720N | More Networking Devices

TP-Link Portable 3G/4G Wireless N Router TL-MR3020 Rs. 1045 – Amazon

Amazon has discounted TP-Link Portable 3G/4G Wireless N Router TL-MR3020 to Rs. 1045. Features Share a 3G/4G mobile connection, compatible with 120+ LTE/HSPA+/UMTS/EVDO 3G/4G USB modems, tested in the field, Travel-size Design, small and light enough to take on the road, enables users to share a 3G/4G mobile connection wherever 3G/4G coverage is available & Wireless speed is up to 150Mbps.
Buy: TP-Link  TL-MR3020 | More Networking Devices

TP-Link Mini Pocket 3G Wireless Router TL-MR3040 Rs. 1677 – Amazon

Amazon has discounted TP-Link Mini Pocket 3G Wireless Router TL-MR3040 to Rs. 1677. Features Compatible with LTE/ HSPA+/UMTS/EVDO 3G/4G USB modems, 2000mAh battery for maximum usage time, Three operation modes available for different situations: 3G/4G Router, Travel Router (AP), WISP Client Router & 150Mbps wireless speeds for rapid sharing and increased signal range.

Buy: TP-Link Mini Pocket 3G Wireless Router TL-MR3040 | More Networking Devices

D-Link 3G Modem Data Card 14.4 Mbps DWP-156 Rs. 970 – Amazon

Amazon has discounted D-Link 3G Modem Data Card 14.4 Mbps DWP-156 to Rs. 970. Features The 3.75G mobile protocol lets you take your broadband connection with you wherever you go, Built-in drivers and software provide immediate access to data and SMS functions & Compact USB-powered adapter uses an internal antenna and requires no batteries or cabling.

Buy: D-Link 3G Modem Data Card 14.4 Mbps DWP-156 | More Wireless USB Adapters

D-Link ADSL2+ Ethernet/USB Combo Router DSL-2520U Rs. 821 – Amazon

Amazon has discounted D-Link ADSL2+ Ethernet/USB Combo Router DSL-2520U to Rs. 821. Features high-speed adsl2+ internet connection, latest adsl2+ standard provides internet transmission of up to 24 mbps downstream,up to 2 mbps upstream, all-in-one single box solution, built-in adsl modem, ethernet and usb ports, qos and firewall protection, all in one single palm-sized box, total compatibility & ease of use & works with all major internet service providers, simple installation.

Buy: D-Link ADSL2+ Ethernet/USB Combo Router DSL-2520U | More Networking Devices

Other Option from FlipKart: D-Link ADSL2+ Ethernet/USB Combo Router DSL-2520U Rs. 845

D-Link Wireless N150 Cloud Router DIR-600L Rs. 931 – Amazon

Amazon has discounted D-Link Wireless N150 Cloud Router DIR-600L to Rs. 931. Features Connect Anytime, Anywhere, Online User Notice, Wireless Intrusion Alert, User Control, Real-time Browsing Record & Easy Setup Wizard.

Buy: D-Link Wireless N150 Cloud Router DIR-600L | More Networking Devices