Sar Sri Akal Ji, tuhada ethe aaun te bht bht swagat hai

J tusi Linux and Windows dual boot karna chahunde o, te tuhanu Linux da koi experience nai, den mai tuhanu Ubuntu (Linux) install karan di slah dau, coz Ubuntu is more user friendly than othe linux distros.

Here is the process....

Install Ubuntu
Download an Ubuntu LiveCD image (.iso) from Ubuntu Downloads and burn an Ubuntu LiveCD.

Insert the LiveCD into your CD-ROM drive and reboot your PC.

If the computer does not boot from the CD (eg. Windows starts again instead), check your BIOS settings and adjust them so that booting from the CD is allowed.

Proceed with installation until you are asked this question:
 "How do you want to partition the disk ?".

Resizing Partitions Using the Ubuntu Installer
Automatic partition resizing

Choose the First Option (It should be something like: "Resize IDE1 master, partition #1 (hda1) and use freed space").

Specify the size of the new partition as a percentage of your entire hard disk.
Click on "Forward".

Continue to Finishing Ubuntu Installation
Manual partitioning

Choose "Manually edit partition table"

Listed will be your current partitions

Select the partition you want to resize and press Enter.

Select "Size:", press Enter.

Select Yes, press Enter.

Type in a new size in Gigabytes for your partition, it's recommended you free up AT LEAST 10 GB of free space for your Ubuntu install. Press Enter when happy with your changes. It may take some time to apply the changes.
Create a swap partition of at least your amount of RAM (if you don't know, 2000 MB is a good value).
Create a partition for your Ubuntu installation, at least 10 GB.
Select "Finish partitioning and write changes to disk".

Things I suggest before installing Linux

1- Make recovery cd for your windows, so that you have the back-up If something went wrong.
2- I recommend you to create partition on your hard disk before you try to install Linux.
3- Some wireless drivers are not available in Ubuntu by default, so make sure you have Ethernet/wired internet      available for first time after install.

If you have any other questions, feel free to ask me. Dhanwaad