is there really difference in working behavior of people based on different regions of India?

I always thought that every people reaction would be similar if he would face similar kind of problem in similar environment. But after few years of working in the industry my perception has been changed about my thought itself. I actually found that people do behave differently on similar problem they have to tackle.

But after working for more than five years in the industry, what i really learned is quite interesting as well as shocking. That interesting thing i found that, Based on the region of the person, working behavior differs very much towards their assigned responsibility and job. for example, two people who are from two different regions are working for similar kind of job in an organization, let's say in finance dept. Their way of handling the people and their job will be totally different. And i noticed this a lot if two persons are from North & South respectively.

I am not sure about others but i feel, people from north are more egoistic and hence they either try to accomplish their job in perfect manner or don;t do that at all. But this is not true in case of people from south. All in all, due to that reason i prefer north based people rather than south based.