Dear Giridhar - Good One!
@Nadeem,
Its best to talk to female employees and check with them if they have ever felt insecure with any of the male colleagues at work.
During college days, our super seniors used to call the girls in my class and in the name of ragging used to literally torture them by their looks, and I an tell you - they never used to look at a girl on her face and talk, but look elsewhere and talk (you know what I mean).
So - as a method to stop them doing this dirty thing - whenever we used to cross these guys, we intentionally kept a bunch of folders / books with us and distributed it to all the girls in the group and cover behind that and walk - we did this in the assembly, we did this in a national seminar, we also did this in front of their HOD's - that was it! Those guys were not there anywhere around us after that :-). Most importantly - when we see them coming from far, we used to make it very obvious that all of us were getting conscious and covered ourselves completely with our duppatta.
So please note that girls do it to make it look like a conscious effort to protect them from such creatures who literally have it written on their face!
"I would request you to find that from the girls if they ever felt there was a problem. If they dont seem to have any problem - then you need to tell them that everyone feels that they are looked down upon as people who dont have manners and even wanted to re assure the girls that they are only having professional motives behind their conversation, and would apologize if they have previously shown / acted in a different manner that has made these girls a little scared/worried."
Talk these things out. Its better.