Not getting proper wifi signals in every part of house? Time to get a new wifi signal booster also known as range extender or wifi repeater etc. We have 4-5 brands in India which provide wifi signal booster and provide 3 year warranty too on these wifi signal booster. Brands like Tp-Link, Netgear, D-Link, Mercusys, MI provide these range extenders via authorised channels in India and provide warranty (usually 3years) too. If interested in saving your fuel by buying it online then take a look below :

Top 5 of Best 5 GHZ Wifi Extender available in India:
TP-Link AC1750 Universal Dual Band Range Extender, Broadband/Wi-Fi Extender, Wi-Fi Booster/Hotspot with 1 Gigabit Port and 3 External Antennas, Built-in Access Point Mode, 1750Mbps Speed (RE450)
  • AC1750 Dual Band Wi-Fi —— Simultaneous 450Mbps on 2.4GHz + 1300Mbps on 5GHz
  • Three Antennas —— Three adjustable external antennas provide optimal Wi-Fi coverage and reliable connections
  • Gigabit Ethernet port —— Act as a wireless adapter to connect a wired device to your network at Gigabit speed
  • Intelligent Signal Light —— Help to find the best location for optimal Wi-Fi coverage by showing the signal strength
  • AP Mode —— Create a new Wi-Fi access point to enhance your wired network with Wi-Fi capability
TP-Link RE300 AC1200 Mesh Wi-Fi Range Extender/WiFi Booster/Wireless Repeater (Up to 1200 Mbps), Intelligent Signal Light, Power Schedule, LED Control, Dual_Band, White
  • Dual Band —— Extends dual-band Wi-Fi across your home to eliminate Wi-Fi dead zones
  • Supports OneMesh —— Creates a Mesh network by connecting to a TP-Link OneMesh router for seamless whole-home coverage
  • 1200 Mbps Wi-Fi Speed —— Operates over both the 2.4 GHz band (300 Mbps) and 5 GHz band (867 Mbps) for more stable wireless experience
  • Signal Light —— Smart signal indicator helps to fi­nd the best location for optimal Wi-Fi coverage by showing the signal strength
  • Easy Set Up —— Push the WPS button to easily set up a Mesh network you can uniformly manage from the Tether app or Web UI
Netgear Nighthawk AC 1900, EX7000-100INS Wi-Fi Range Extender
  • Dual band Wi-Fi up to 1900mbps and 10000sqft range
  • 700mW high-powered design for ultimate range
  • Dual core 1GHz processor for max Wi-Fi performance
  • 5 x gigabit ports to connect wired devices like smart TVs and game consoles to Wi-Fi
  • USB 3.0 for up to 10 times faster access to your stored media
TP-Link | AC1200 WiFi Range Extender | Up to 1200Mbps Speed | Dual Band Wireless Extender, Repeater, Signal Booster, Access Point| Easy Set-Up | Extends Internet Wi-Fi (RE305)
  • No Dead Zone —— Brings Wi-Fi dead zone to life with strong Wi-Fi expansion at combined speed of up to 1.2Gbps
  • AC1200 Dual Band Wi-Fi —— Operates over both the 2.4GHz band(300Mbps) and 5GHz band(867Mbps) for more stable wireless experience
  • OneMesh  —— Creates a Mesh network by connecting to a TP-Link OneMesh router for seamless whole-home coverage.
  • Perfect Location —— Intelligent signal light helps to fi­nd the best location for optimal Wi-Fi coverage by showing the signal strength
  • Ultimate Compatibility —— Works with any Wi-Fi router or wireless access point
Edimax 1200 mbps BR-6478AC V2 New AC1200 and 11AC 5 in 1 Gigabit Dual-Band AC Wi-Fi Router / Range Extender / Access Point / Bridge / WISP with USB Port and VPN (White)
  • Next generation 802.11ac Wi-Fi standard
  • 3-in-1 router, access point and range extender
  • Backward compatible with 802.11a/b/g/n standards
  • Concurrent dual-band wireless connectivity for 2.4GHz and 5GHz
  • Revolutionary iQoS for efficient and effective internet bandwidth management, 5-port gigabit Ethernet connectivity
Nexxt Solutions Wireless WiFi Range Extender Signal Repeater [Kronos1200-AC] | 1200Mbps Speeds and 5 Year Warranty [White]
  • Boost WIFI Coverage: This Range extender boosts your existing signal to extend your wireless network to hard-to-reach areas.
  • High Performance and Reliable wireless N Network speeds up to 1200Mbps, extend to cover bedrooms, basements, garages, gardens, patios
  • Simple Installation, Push button connection to connect the Extender to your existing Access point, convenient LED signal strength indicators tell you when the signal is connected
  • Even connect a Device via the RJ45 Port included in the Extender to connect via Ethernet connection from the Extender, such as a TV, PC, Game Console or a Media bridge, Includes a 5 Year warranty
  • Nexxt Solutions, a US Company committed to Quality and Customer Service with over 10 Million products shipped since 2003
(Refurbished) D-Link DAP-1610 AC1200 Wi-Fi Range Extender 
  • This Certified Refurbished product is tested to work and look like new with minimal to no signs of wear & tear; the product comes with relevant accessories and is backed by a minimum six month supplier backed warranty; box may be generic
  • AC1200 speeds - up to 300Mbps (2.4GHz) and 867Mbps (5GHz)
  • Simultaneous dual band - better performance for video streaming, online gaming and large file transfers
  • Quick router setup (QRS) app - easy setup app for smartphones and tablets
  • Smart signal strength LEDs
TUOSHI Dual Band Long Range Outdoor USB Wi-Fi Antenna | High Gain USB Wi-Fi Extender Antenna for PCs | Support 600Mbps AC 802.11ac Dual Band 2.4 & 5 GHz
  • ? Indoor/Outdoor External Powerful Antenna: High Gain Long-Range 20dBi Antenna can help you connect even when wifi signals are weak.
  • ? High Speed: Up to 600Mbps Wi-Fi speeds on 5GHz (433Mbps) or 2.4GHz (150Mbps) bands: Performance to reduce freezing and lags when streaming and gaming. Ultra-fast AC600 wireless adapter speed with 80
  • ? Plug-and-Play: Windows 10 is plug and play. Setup CD included; Once you've run the software, you can simply insert the adapter to get connected
  • ? Works with Any WiFi Routers: By using AC600 AC wireless adapter, you can upgrade your PC,laptop or Mac to work with the latest AC WiFi router for faster speed and extended range
  • ? TUOSHI N519D USB Wireless Network Adapter Support Windows 10/8.1/8/7/XP/Vista (32-bit/64-bit), Mac OS 10.4~10.12.1. We offer 12 month worry-free warranty. If you have any problems when using, just c
Netgear WiFi Range Extender EX6120-Extend Your Internet Wi-Fi up to 1200 sq ft & 20 Devices with AC1200 Dual Band Wireless Signal Booster & Repeater|Compact Wall Plug Design|Easy Set-Up|with LAN Port
  • EXTENDED WIRELESS COVERAGE: Adds Wi-Fi range coverage up to 1200 sq ft, and connects up to 20 devices such as laptops, smartphones, speakers, IP cameras, tablets, IoT devices, and more.
  • AC1200 WI-FI SPEED: Provides up to 1200Mbps performance using dual-band and patented FastLane(TM) technology for video streaming and casual gaming.
  • UNIVERSAL COMPATIBILITY: Works with any wireless router, gateway, or cable modem with Wi-Fi.
  • WIRED ETHERNET PORT: Simply plug in game consoles, streaming players, or other nearby wired devices using the one 10/100M port for maximum speed.
  • SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols.

You can opt for same product, brand & model name of wifi range extender in both offline and online market.