Updating Lucene index from two different threads in a web application

I have a .net web application that uses Lucene.net for the company search functionality. When registered users add a new company, it is saved in the database and also indexed in the Lucene-based company search index in real time.

When you add a company to the Lucene index, how do I handle the case of two or more registered users at the same time publishing a new company? Also will both of these companies be indexed without file locks, timeout locks, etc.?

Understand if I could help with the code.

Thank.