Rawal,
In the community, we are all volunteers who donate their time and years and knowledge to help individuals. Unfortunately, you have not taken my advice to at least try to read the man pages or any of the help documentation and continue to post daily questions on basic netapp information.
The community should not serve as your personal netapp answer tool.
Please start with this page below.
https://library.netapp.com/ecmdocs/ECMP1511537/html/man1/na_lun.1.html
