About Alliance Detective Agency — Delhi NCR's Most Trusted Private Investigators Since 2003
Founded by Gaurav Aggarwal — 20+ Years of Delivering the Truth
Alliance Detective Agency was founded in 2003 by Gaurav Aggarwal, a seasoned investigator with over two decades of field experience across Delhi NCR. What began as a small investigation practice in Dilshad Garden, East Delhi has grown into one of the most trusted private detective agencies in the region — with a team of 70+ professional investigators handling hundreds of cases every year across Delhi, Noida, Gurugram, Ghaziabad and Faridabad.
Our founding principle has never changed: every client deserves the truth, delivered legally, discreetly and with complete confidentiality.
The way to turning into a private specialist is a thorough one. Numerous private examiners have many years of related knowledge, incorporating professions in law authorization.
With a specific end goal to try and set up a Class “CC” Private Investigator Intern permit in Florida, for instance, the candidate must submit confirmation of effective consummation of at least 40 hours of expert preparing relating to general investigative systems by a school, junior college, school, or college under the domain of the Department of Education. Further experience and preparing is required for full licensure.
As innovation keeps on propelling, the capacity to unravel cases has made strides. Examinations will take less time and can be refined all the more altogether if the private agent will use every single accessible asset. Specific databases, court records, person to person communication destinations, driving records, criminal records, occupation history, common suit and more would all be able to be gotten to using computerized innovations.
Be that as it may, there are different times when the private agent must will to get innovative in his or her data gathering. In such cases, private specialists must show creativity while doing their employments.
Specialists are relied upon to handle cases quickly and effectively. Thus, the best private specialists are talented in time administration. This incorporates reacting to messages and telephone brings in a brief design, and additionally keeping up open lines of correspondence with the customer and related gatherings. Customer fulfillment is specifically corresponded to an examiner’s capacity to make him or herself accessible to the customer every minute of every day.
While private examiners are not authoritatively bound by the same classification assent-ions as lawyers or specialists, a great PI will respect this. A powerful private examiner keeps up strict levels of secrecy in all associations. Besides, he or she ought to have a secrecy arrangement set up and should will to express the strides that have been taken keeping in mind the end goal to guarantee classification.
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About Us
Alliance Detective Agency
WHO WE ARE AND WHAT WE DO
Alliance Detective is one of India’s established and most respected Private Investigators. With over 15+ years’ experience in investigations helping people resolve their problems we are here to assist in all aspects of private investigation providing a cost effective service. Our investigators are experienced, skilled and from a law enforcement background. We get results. Of course not all problems have quick and easy solutions however we will provide you with the options best suited to your situation. Our team of investigators are ex-police, have many years of experience and as such are multi discipline which allows them to often provide a quicker solution. We provide a realistic assessment of the case, the time required to complete it and the costs involved.
EXPERIENCE
The way to turning into a private specialist is a thorough one. Numerous private examiners have many years of related knowledge, incorporating professions in law authorization. With a specific end goal to try and set up a Class “CC” Private Investigator Intern permit in Florida, for instance, the candidate must submit confirmation of effective consummation of at least 40 hours of expert preparing relating to general investigative systems by a school, junior college, school, or college under the domain of the Department of Education. Further experience and preparing is required for full licensure.
INGENUITY
As innovation keeps on propelling, the capacity to unravel cases has made strides. Examinations will take less time and can be refined all the more altogether if the private agent will use every single accessible asset. Specific databases, court records, person to person communication destinations, driving records, criminal records, occupation history, common suit and more would all be able to be gotten to using computerized innovations. Be that as it may, there are different times when the private agent must will to get innovative in his or her data gathering. In such cases, private specialists must show creativity while doing their employments.
RESPONSIVENESS
Specialists are relied upon to handle cases quickly and effectively. Thus, the best private specialists are talented in time administration. This incorporates reacting to messages and telephone brings in a brief design, and additionally keeping up open lines of correspondence with the customer and related gatherings. Customer fulfillment is specifically corresponded to an examiner’s capacity to make him or herself accessible to the customer every minute of every day.
CONFIDENTIALITY
While private examiners are not authoritatively bound by the same classification assent-ions as lawyers or specialists, a great PI will respect this. A powerful private examiner keeps up strict levels of secrecy in all associations. Besides, he or she ought to have a secrecy arrangement set up and should will to express the strides that have been taken keeping in mind the end goal to guarantee classification.
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25+ Years Experience
100% Legal & Trust Worthy
Confidentiality Guaranteed
Meet Gaurav Aggarwal — Founder & Senior Investigator
Gaurav Aggarwal has spent over 20 years in the field of private investigation, handling thousands of cases across matrimonial fraud, corporate espionage, infidelity investigations, background verification, and surveillance operations across Delhi NCR.
His deep understanding of Indian law — particularly the Indian Evidence Act, IT Act 2000, and the legal framework governing private investigation in India — ensures that every case handled by Alliance Detective Agency produces legally admissible evidence that stands up in Delhi High Court and all NCR family courts.
Gaurav personally oversees every case that passes through Alliance Detective Agency, ensuring the highest standards of accuracy, confidentiality and legal compliance. He is available for direct consultations with clients who require a senior investigator’s perspective on sensitive or complex cases.
Specialisations:
- Pre-matrimonial and post-matrimonial investigations
- Extra-marital affair investigations and infidelity proof
- Employee and corporate background verification
- Surveillance and evidence gathering for court proceedings
- Missing person investigations
- Asset verification and financial fraud investigations
Our Story — From Dilshad Garden to Pan-NCR Coverage
Alliance Detective Agency has been based in Pocket-D, Dilshad Garden, Delhi since its founding in 2003. Our East Delhi base gives us a natural advantage across the city — we know the localities, the courts, the local networks, and the terrain of Delhi NCR better than any agency operating remotely.
Over the past 20+ years we have expanded our coverage to serve clients across the entire Delhi NCR region — from corporate clients in Gurugram’s Cyber City to families in Noida’s residential sectors, from matrimonial cases in Ghaziabad’s Indirapuram to surveillance operations in South Delhi’s upmarket neighbourhoods.
Today Alliance Detective Agency operates with:
- 70+ trained professional investigators across Delhi NCR
- Two office locations in Dilshad Garden, Delhi
- Pan-India network for cases requiring investigation outside NCR
- 24/7 availability — we never close
- 100% case confidentiality — protected by NDA from day one
Why Clients Across Delhi Choose Alliance Detective Agency
What Makes Alliance Detective Agency Different
✓ Named Expert — Not an Anonymous Agency Every case is overseen by Gaurav Aggarwal personally. Unlike agencies that hide behind a brand name, we believe clients deserve to know exactly who is handling their most sensitive matters. Our founder’s name, face and credentials are on every page of this website because we stand behind our work.
✓ 100% Legal Investigations — Always We operate strictly within Indian law. No phone tapping. No hacking. No illegal surveillance. No privacy violations. All evidence is gathered following Chain of Custody protocol — making it legally admissible in Delhi High Court, NCR family courts and all Indian courts. We sign an NDA with every client before any work begins.
✓ Specialised in YMYL Cases — Matrimonial and Corporate Marriage and employment are two of the most important decisions a person makes. We specialise in exactly these areas — pre-matrimonial investigation, employee background verification, infidelity investigation and divorce case evidence — because we understand the gravity of getting it right.
✓ Results in Writing — Always Every investigation ends with a comprehensive written report including factual findings, photographic evidence, document verification results and a clear conclusion. You never receive vague verbal feedback. Every finding is documented, evidenced and delivered in a format suitable for personal use or court submission.
20 years
Alliance Detective Agency has been providing top-quality investigative services to clients in need and is a Best detective agency in Delhi NCR.
Our Investigations — By the Numbers
20+ Years
In operation since 2003
70+ Investigators
Professional field team
1,000s of Cases
Successfully resolved
5 NCR Cities
Full coverage
OUR SERVICES
Our Areas of Expertise
Pre/Post Matrimonial Investigation
We conduct detailed pre and post matrimonial investigations in Delhi NCR to verify background, financial status, social behavior, and past relationships before or after marriage. Our investigators gather discreet, evidence-backed reports including field verification and digital checks where legally permissible. Every case is handled with strict confidentiality to protect your privacy and future
Divorce Cases Investigation
Our divorce investigation services in Delhi NCR help collect legally compliant evidence in cases involving infidelity, hidden assets, child custody disputes, or misconduct. We provide documented proof, photographs, and surveillance reports (where applicable under law) to support your legal proceedings. All investigations are conducted with 100% discretion and sensitivity.
Extra marital Affair Investigation
If you suspect a spouse of infidelity, our extramarital affair investigation team in Delhi NCR conducts discreet surveillance and behavior analysis to uncover the truth. We gather evidence-based findings including photographs, activity reports, and verification details while maintaining complete confidentiality. Our goal is to provide clarity backed by facts, not assumptions.
Litigation Support
Alliance Detective Agency offers professional litigation support services in Delhi NCR to assist lawyers and individuals with fact verification and evidence collection. We conduct background investigations, surveillance, and document validation aligned with legal guidelines to ensure admissible reporting (where applicable). Every case is handled discreetly to safeguard client interests.
Surveillance
We provide confidential surveillance investigation services across Delhi NCR for matrimonial, corporate, and personal matters. Our trained field investigators use strategic monitoring methods to document activities through photographs and detailed observation reports. All surveillance operations are carried out ethically and in compliance with applicable laws.
Missing Person Investigation
Our missing person investigation services in Delhi NCR involve structured tracking, background research, and field inquiries to locate individuals efficiently. We use verified information channels and investigative techniques to gather reliable evidence and leads. Every case is handled with urgency, care, and strict confidentiality.
Cyber Crime Investigation
We provide cyber crime investigation services in Delhi NCR to help clients identify online fraud, digital harassment, social media misuse, and financial scams. Our process includes digital footprint analysis, technical verification, and legally compliant documentation. We ensure complete discretion while uncovering actionable evidence.
Corporate Investigation Services
We conduct corporate investigations in Delhi NCR including employee background checks, due diligence, internal fraud detection, and asset verification. Our team gathers documented evidence and detailed intelligence reports to protect business interests. Every assignment is managed with professional confidentiality and compliance.
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Area we serve
We offer private detective services in Delhi, Noida, Ghaziabad, Gurugram, Faridabad, and other major cities. Learn more by choosing your city below:
Contact Gaurav Aggarwal — Free Confidential Consultation
If you have a case that requires a senior investigator's attention, Gaurav Aggarwal is available for direct consultations — over a secure phone call, WhatsApp, or in person at our Dilshad Garden office. All enquiries are treated with complete confidentiality from the very first call.
⏰ Available 24 hours a day, 7 days a week — including weekends and public holidays.
