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Step 1: Installation of USB modem modules .

Open a terminal from Applications > System Tools > Terminal and type

sudo apt-get install usb-modeswitch

sudo apt-get install usb-modeswitch-data

Once you are done with the above packages installation unplug the data card and reboot the machine .

Step 2: Connect your USB data card to the laptop and make sure the card is detected .

Type lsusb | grep Huawei in the terminal to find the device is detected or not . This will show as :
Bus 006 Device 005: ID 12d1:140b Huawei Technologies Co., Ltd.

Step 3: Configuring the Reliance netconnect connection.

Glucid includes some useful utilities to get your dial-up connection up and running.Here is the following ways you can connect to your dialup connection

1) Using Network Connections
2) Using gnome-ppp
3) Using wvdialconf & wvdial

Now we will see 3 ways how to configure dialup connection in Glucid.

Before Starting
Before configuring Reliance Netconnect you need to have the following information :
1)Username : Reliance phone number
2)Password : Reliance phone number
3)Dail-in number : #777

Method 1: - Using your networking option in Ubuntu

1)Connect the Netconnect to the Laptop.
2)Go to System > Preferences > Network Connections > Mobile Broadband > Add
3) It will show Huawei under Mobile braodband device. Click on Forward.

Choose your providers country - Choose from the country list and click on Forward.
Choose your provider from list - Select reliance
Confirm broadband settings.
Click on Apply.

4)Enter your netconnect information and click on apply:
1) Username : Reliance phone number
2) Password : Reliance phone number
3) Number : #777

5)Click on close.
6)Choose the connection ( Reliance connection 1 ) from notification area and enjoy !

7)Choose the Disconnet under “Reliance connection 1” from notification area to disconnect.

Method 2: - Configuring a Dial-Up Connection using gnome-ppp
GNOME PPP is an easy to use graphical dialup connection configuring and dialing tool with system tray icon support.It uses GNOME/GTK+ for its graphical interface and integrates well in GNOME desktop environment, but it can be used in other environments.
It also uses WvDial dialer as its backend, providing simple configuration via config files. You can also use plain wvdial if you don’t have X running.
1) Install gnome-ppp Ubuntu
sudo apt-get install gnome-ppp
This will complete the installation.
2) Configuring the connection.
If you want to open the application go to Application--->Internet--->GNOME PPP

Once application opens you should see the following screen

In the above screen you need to click on setup to configure your settings you should see the following screen configre the modem settings.

Click on Detect button to detect the modem attached to the USB.
Note: This would detect the deivce connected to the USB port. In case if you use different USB you need to click on Detect button every time.
Next click on networking tab to configure network settings.

Next click on options tab to configure general options.

Once you have all the details enter the details, click on close . you can see the following screen.
Click on connect and enjoy!

Method 3: - Configuring using wvdialconf & wvdial
Add this to /etc/wvdial.conf
[Modem0]
Modem = /dev/ttyUSB0
Baud = 115200
SetVolume = 0
Dial Command = ATDT
Init1 = ATZ
FlowControl = Hardware (CRTSCTS)
[Dialer netconnect]
Username = Relience Phone number
Password = Relience Phone number
Phone = #777
Stupid Mode = 1
Inherits = Modem0
do # sudo reboot
now do # sudo wvdial netconnect 
It will dial and give you the ip address if successfully connected. Press CTRL+C to disconnect ( network manager may not detect it)