Some one has done Negative seo on my site

[ericroy]

Do your site ranking drop?

yes
it's not even top 100

 

[djsobuj]

yes
it's not even top 100

If you believe your site's ranking is being harmed by low-quality links you do not control, you can ask Google not to take them into account when assessing your site. You should still make every effort to clean up unnatural links pointing to your site. Simply disavowing them isn't enough. said by google,
https://www.google.com/webmasters/tools/disavow-links-main

 

[aidenhera]

ill admit it, i did it, sorry man, i was testing if it works

 

[nc.zero]

negative seo does not work anymore
google disavow has no impact - at least not over the last 2 years; in fact it is pretty difficult to get to it through google search console.

Just google "google dissavow" and ot will be the first result, no need to jump through hoops to get to it