From over 16 year, Spy Detective Agency has been the Best Detective Agency in Delhi in terms of resolving investigation cases with in PAN India and Abroad too. Whatever your issues are, our private investigators have a solution to your matter. All of the team in private investigator be it male or female are experienced in solving personal as well as corporate investigation services. We are committed to providing 100% secure and private detective services to clients in all industries. Our goal is to become the best research service provider that offers our clients cost-effective and marketing support for personal and corporate research. We have an expert and dedicated team of professional investigators with a lot of experience to handle every inquiry without any difficulty. SDA did not do any case and let go unsolved irrespective of the situation favorable to them. Every member of our private investigator team has vast experience in solving every investigation quickly with proof. All of the investigation related process occurs in secrecy without let anybody get to know about the concerned inquiry. The wide range of investigative services includes pre and post matrimonial investigation, loyalty test investigation, extramarital affair investigation, debugging services, surveillance investigation, pre and post employment verification, business competitor investigation, and so on.