Is it possible to filter profiles of colleagues/friends from same company/institution and view the same ??
No, right now.
Only thing you can do is to search google like “institute name site:codechef.com”.
Edit: One more thing you can do is to search in the discuss section itself type the institute name in search box and select users. Try short form like iit, nsit etc. If the user’s handle contain the institute name then it surely show them. It gives more result than searching google.
It is giving nothing…
@vikasnitt try this search “National Institute of Technology Tiruchirappalli site:codechef.com”. It gives you link to some of the users along with list of teams. In list of teams you can see which team from this college participate in any Team contest at codechef. It may not give info about all user but it is helpful.
You might want to see a related question http://discuss.codechef.com/questions/8462/people-in-the-same-city