Hello, I have directory side. Last few days i got many link removal requests from my directory site. Why this is happen?
It's really hard to tell unless you give more details. What are the reasons for the removal requests? If they didn't specify, you might want to add a form that asks them for a reason.
Might Be possible That your website back link owner got warning email from Google in Google Webmaster tool for unethical links
I would respond and charge a small fee for each removal they have requested. Removing the links they have placed takes you time and effort which you should charge for.
I think your directory is going dirty (full of Spam links) or they feel your directory links are useless or harmful for them. I take $10 to remove link from my directories. i have more then 1000 instant approval directories and i maintain illegal and hate links via server removal. my directories are clean.
Try to find a better site wherein you could link. There are a lot of fake sites like directory and social bookmarking sites that it put there.