I am creating plugins from scratch but i am not getting any documentation on how to build plugins with example or proper steps or explanation.
Can you provide me the link of the documentation.

I am not sure if something like that exists, but it definitely did.
Check docs/google.

Do you have any link or documentation or any reference.

This may help
https://docs.osclasspoint.com/category/developers/plugins

Do you have any link or documentation or any reference.

If you are lazy to search "How to create osclass plugin" on google, why you think you would be able to create plugin?

For your information i have searched 10 pages of google search where i just found a github link of creating plugin which was just for admin panel and one in osclass documentation which is basically what is plugin??

1) go to goole.com
2) enter "How to create osclass plugin"
3) https://www.google.com/search?q=How+to+create+osclass+plugin&rlz=1C1GCEU_enAR890AR890&oq=how+to+cr&aqs=chrome.0.69i59j69i57j69i59j0i20i263i512j0i512l3j69i60.1284j0j7&sourceid=chrome&ie=UTF-8

There is even very detailed guide from madhouse