H. R Investigation is a strong and Private Detective Agency Mayur Vihar providing loyalty test Investigation services in PAN India. We provide topmost loyalty detective investigation services such as loyalty test investigation, pre-marriage investigation, post-marital investigation. Testing the loyalty of a person becomes very easy with our services. If you are searching for a loyalty test investigation agency in India then your search is over here. We investigate all the necessary factors for investigating the loyalty of your potential partner, friend, spouse, boyfriend/girlfriend, etc.