How to get collision data from specified game object?

I need to get collision from specified game object, but I need to do it in a way which do not invoke the Messages Sent function of collider. Is there anyone who can help in this matter?

If you want to get collision from specific colliders. Apply TAGS on each type colliders you have.

Then you can test the GameObject tag when a collision occurs:

void OnCollisionEnter(Collision collision) {
      if(collision.gameObejct.tag.Equals("MyTAG)) {
         // do stuff...
     }
}