Overview: Two Paths to Digital Identity Verification
Indian financial institutions today have two primary digital methods for verifying customer identities: Aadhaar-based electronic KYC (eKYC) and Video-based Customer Identification Process (Video KYC or V-CIP). Both are recognized by the Reserve Bank of India as valid methods for Customer Due Diligence (CDD), but they work in fundamentally different ways and serve different purposes.
Aadhaar eKYC leverages India's Aadhaar biometric database to authenticate a person's identity electronically, either through OTP verification or biometric matching. Video KYC, on the other hand, relies on a live video interaction between the customer and a trained verification agent who confirms identity by examining original documents and matching the customer's face against their photo ID.
Choosing between these methods -- or deciding how to combine them -- is one of the most consequential technology decisions a financial institution makes for its onboarding process. The right choice depends on your institution's regulatory status, customer demographics, risk appetite, and operational capacity.
How Aadhaar eKYC Works
OTP-Based Authentication
In OTP-based Aadhaar eKYC, the customer provides their 12-digit Aadhaar number. The institution sends an authentication request to UIDAI (Unique Identification Authority of India), which triggers a one-time password sent to the customer's Aadhaar-linked mobile number. When the customer enters the OTP, UIDAI returns demographic data (name, date of birth, gender, address) and the Aadhaar photograph to the requesting institution. This entire process takes under 60 seconds and requires no human intervention.
Biometric Authentication
Biometric Aadhaar eKYC uses the customer's fingerprint or iris scan captured through a certified biometric device. The biometric sample is sent to UIDAI for matching against the stored template. If the match is successful, the same demographic and photo data is returned. Biometric authentication is considered more secure than OTP because it confirms physical presence, but it requires specialized hardware and is typically limited to branch or agent-assisted environments.
A critical limitation of Aadhaar eKYC is access. Only institutions registered as Authentication User Agencies (AUAs) or KYC User Agencies (KUAs) with UIDAI can perform real-time Aadhaar authentication. This primarily includes scheduled commercial banks and certain government entities. Most NBFCs, insurance companies, and fintech platforms do not have AUA/KUA licenses and must rely on Aadhaar Offline XML or other verification methods.
How Video KYC Works
Video KYC follows the V-CIP framework prescribed by the RBI. The customer receives a video call link via SMS or email and joins from their smartphone or computer. A trained verification agent initiates a live video session where they verify the customer's identity through several steps: confirming the customer's name and personal details verbally, asking the customer to display their original identity documents (PAN card, Aadhaar, Passport, or other OVDs) on camera, capturing a clear live photograph of the customer, and matching this photograph against the photo on their identity document.
Throughout the session, the platform performs automated checks including document OCR to extract text from the displayed documents, liveness detection to confirm the customer is physically present, face-matching algorithms to compare the live face against the document photo, and geo-tagging to record the customer's location. The entire session is recorded and stored as an auditable record.
Video KYC is classified as a full CDD-equivalent process by the RBI, meaning it can be used for customer onboarding without any additional in-person verification. This makes it a powerful alternative to physical branch visits, particularly for institutions serving customers in remote or underbanked areas.
Head-to-Head Comparison
Cost
Aadhaar eKYC is significantly cheaper on a per-verification basis. UIDAI charges INR 20 per OTP authentication and INR 20 per biometric authentication. With no agent involvement required, the total cost per verification is typically under INR 25. Video KYC costs more -- typically INR 50 to 150 per session depending on the platform provider -- because it requires a trained agent's time (5-10 minutes per session), platform infrastructure, and video storage. However, compared to physical KYC (INR 300-800 per customer including field agent costs, travel, and document handling), both digital methods offer substantial savings.
Speed
Aadhaar OTP eKYC completes in under 60 seconds and can be fully automated. Video KYC takes 5 to 10 minutes and requires scheduling an agent-customer interaction. For high-volume, low-risk products like prepaid wallets or basic savings accounts, the speed advantage of Aadhaar eKYC is significant. For higher-value products like loans, credit cards, or investment accounts, the additional time for Video KYC is acceptable given the enhanced verification it provides.
Fraud Prevention
Video KYC has a clear advantage in fraud prevention. The live agent interaction adds a human judgment layer that can detect suspicious behavior, inconsistent responses, and visual anomalies that automated systems might miss. Combined with AI-powered liveness detection, face matching, and document verification, Video KYC provides multi-layered fraud prevention. Aadhaar OTP eKYC, while secure against identity fabrication (since it verifies against UIDAI's authoritative database), is vulnerable to SIM swap attacks where a fraudster gains control of the victim's Aadhaar-linked mobile number and can intercept the OTP.
Customer Experience and Regulatory Standing
Aadhaar eKYC offers a faster, more seamless experience for tech-savvy customers who simply enter their Aadhaar number and OTP. Video KYC requires more effort -- the customer must be in a well-lit environment, have their documents ready, and spend several minutes on a video call. However, Video KYC provides a more personal, trust-building interaction that some customers prefer, particularly for high-value financial products. From a regulatory perspective, both are recognized for full CDD, but Video KYC is available to a broader set of institutions since it does not require UIDAI AUA/KUA licensing.
When to Use Aadhaar eKYC
Aadhaar eKYC is ideal when your institution has AUA/KUA licensing, you need to process high volumes of verifications quickly (thousands per day), the products being offered are lower-risk (basic savings accounts, prepaid instruments, insurance policies below certain thresholds), and your customer base is comfortable with digital-first interactions. Banks that process large volumes of account openings often use Aadhaar OTP eKYC as their primary onboarding method because the speed and cost economics are compelling at scale.
However, institutions must recognize the limitations. Aadhaar eKYC depends entirely on the UIDAI infrastructure -- if the UIDAI servers are down or experiencing latency, your onboarding process stops. The Supreme Court's 2018 Puttaswamy judgment also placed restrictions on Aadhaar usage by private entities, and while the regulatory landscape has evolved since then, institutions must stay updated on the latest permissible uses of Aadhaar data.
When to Use Video KYC
Video KYC is the right choice when your institution does not have Aadhaar AUA/KUA licensing (most NBFCs, fintechs, and insurance companies), the products require enhanced due diligence (high-value loans, wealth management, foreign exchange), fraud risk is elevated and you need human-in-the-loop verification, or regulatory requirements mandate agent-led verification for certain customer categories. Video KYC is also valuable for re-KYC of existing customers and for periodic KYC updates where the institution needs to reconfirm the customer's identity and current details.
Institutions serving rural and semi-urban customers may also prefer Video KYC because it provides an opportunity for assisted onboarding. The live agent can guide the customer through the process, explain the terms, answer questions, and resolve document issues in real time -- something that a fully automated Aadhaar eKYC flow cannot offer.
The Hybrid Approach: Best of Both Worlds
The most sophisticated institutions do not choose between Aadhaar eKYC and Video KYC -- they use both in a hybrid workflow that routes customers to the appropriate verification method based on risk level, product type, and customer profile. A typical hybrid approach uses Aadhaar OTP eKYC for initial identity confirmation and data pre-population, then triggers Video KYC for enhanced verification when risk factors exceed a threshold.
For example, a bank opening a basic savings account might use Aadhaar OTP eKYC alone. But if the same customer applies for a personal loan above INR 5 lakh, the system automatically schedules a Video KYC session where the agent verifies the identity using the Aadhaar data already collected plus additional document verification. This hybrid model optimizes cost (using the cheaper method where possible) while ensuring robust fraud prevention for higher-risk activities.
BASEKYC supports this hybrid model natively. Our platform can ingest Aadhaar eKYC data from your existing authentication flow and use it to pre-populate the Video KYC session, reducing the agent's verification time. The Aadhaar photograph retrieved via eKYC serves as an additional reference point for face matching during the video session, adding another layer of verification. This integrated approach gives institutions the speed of Aadhaar eKYC and the security of Video KYC, applied intelligently based on each customer's risk profile.