Note : I'm just sharing the work of the XDA member ms.goofy.This app was tested on this device and it was working flawlessly. 
Here's a little introduction by him :
Original Thread - http://xdaforums.com/showthread.php?t=2721934
Here's a little introduction by him :
This is is for those people who face connectivity issues with their 2G, 3G or 4G data connection.
It can address disconnection and other common connectivity issues.
Loaded with lots of powerful features, this app delivers a stable mobile internet connectivity.
★★★ Active Reconnect ★★★
Does your device often lose data signal and is unable to reconnect even though network is available? Do you miss out important chats, IMs and emails until you turn data connection on and off, maybe multiple times to get reconnected? That is a known issue that affects many people. It can be caused by handset or carrier issues.
Active Reconnect automatically reconnects your 2G GPRS, 3G or 4G LTE internet connection as soon as it gets disconnected and thus keeps the data connection active at all times.
When activated, this feature actively monitors and immediately re-establishes dropped connections, using muscle if required. This is particularly useful if android's built in system fails to connect you to the network. The monitoring process does not cause any load on your device's resources as it is intelligently invoked only when required.
★★★ Active Keep Alive ★★★
Does your wireless carrier disconnects your 2G, 3G or 4G data connection after a certain period of inactivity? Or is there no data transfer even when connection is live?
Active Keep Alive keeps your connection alive in such cases and also helps in keeping the traffic flowing between your phone and your ISP's servers. It also optimizes TCP/IP parameters if required to give you the best possible internet experience. The network assigns a higher priority to your device and this results in significant improvement in network performance, especially if resources on the network are under strain.
★★★ Force Connect ★★★
Uses tricks and tweaks to establish internet connection and attains connectivity even on congested networks.
✔ Highly customizable and elegant design with animations, transparency, bells, gongs and whistles to deliver best user experience.
✔ This app can fix 2G, 3G and 4G internet connection problems on Tata DoCoMo, BSNL 3G, Airtel, T-Mobile, Verizon, Vodafone, Reliance and any other godforsaken carrier!
USAGE INSTRUCTIONS:
→ If you are experiencing difficulty in establishing connection to the internet over the mobile network, just press the Force Connect button on the dashboard to try forcing the connection for once.
→ If you are facing automatic disconnection problem then activate the Active Reconnect module. It will automatically detect connection drops and actively reconnect the connection, using force connect if required.
→ If your carrier disconnects you from the network following a particular period of inactivity, activate the Active Keep Alive module. You can adjust the ping interval from the Active Keep Alive settings to be just lower than your network's inactivity timeout period.
→ If you are facing any other problem with you connection, like no data being transmitted even when connected, you can just activate the Active Keep Alive with default settings. Its pinging action is known to work wonders and solve or reduce the intensity of many congestion related network issues. Try reducing the ping interval to get better results.
☆ If you are facing any unique connectivity issues or have suggestion for us, we are all ears. Just drop us a mail.
IMPORTANT INFORMATION:
→ When Active Reconnect is enabled, you cannot turn off the mobile data connection directly from your device.
To disconnect, press the data setting ON OFF button on the app's dashboard or deactivate Active Reconnect before turning off mobile data from android settings.
Original Thread - http://xdaforums.com/showthread.php?t=2721934
