
Closed
Posted
Paid on delivery
I need a secure, web-based portal that lets banks and other financial institutions instantly validate key documents—Aadhaar, PAN, ITR, Form 16, Udyam, GST, Passport, and Driving Licence—by simply entering the certificate or document number. PDF upload should still be accepted when clients prefer, but no other file types are required. The verification flow must meet an advanced standard. That means API or gateway connections to the appropriate government or third-party data sources, reliable OCR or checksum routines where APIs are unavailable, multifactor authentication for users, full encryption of data in transit and at rest, and a tamper-proof audit trail. Once a check is complete, the system should generate a clear, timestamped PDF report our clients can download or email as proof of compliance. A separate, automatic billing module is also essential. Each verification request must be tracked, priced by document type, and pushed into an invoice that clients can view, download, and pay online. Basic reporting on usage and revenue will help me monitor performance. Deliverables: • Fully functional web application (front-end, back-end, database) • Secure integrations with official verification APIs or data sources • Automated PDF report generator for each completed check • Real-time billing and invoicing system tied to verification usage • Deployment instructions and brief admin guide I’m open to the tech stack, provided it scales easily, is well-documented, and prioritises security. If you have experience building compliance platforms or fintech tools, let’s make this happen.
Project ID: 40623350
47 proposals
Remote project
Active 6 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
47 freelancers are bidding on average ₹22,274 INR for this job

Two things worth naming up front on this build: First, no freelancer can talk to UIDAI's Aadhaar API directly. Direct Aadhaar access is restricted to licensed AUA/KUA entities under UIDAI's authentication framework. In practice you route through a BFSI-licensed aggregator — Karza, IDfy, Signzy, Digio, Setu, or Cashfree KYC — who resell all eight verification types you listed (Aadhaar, PAN, ITR, Form 16, Udyam, GST, Passport, DL) through a single API contract. Which aggregator you pick is a business decision (pricing per call, coverage, SLA) but the technical integration is the same shape either way. Second, the "tamper-proof audit trail" isn't a checkbox — it's a specific pattern (append-only log, per-request signed hash chain, timestamped PDF reports with the aggregator's response digest embedded) that RBI/BFSI clients will actually check. Getting this right day one is cheaper than retrofitting after your first bank client asks for their compliance review. I'm a full-stack dev with 9+ years — Python (Django/FastAPI) + Node + PostgreSQL + Stripe/payment integrations at Poundit (Philippines), plus AWS Lambda + real-time secure pipelines at Marin Software (US). Comfortable with MFA (TOTP/SMS), field-level encryption at rest, TLS everywhere, JWT auth, and structured audit logging.
₹25,000 INR in 6 days
4.7
4.7

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.
₹25,000 INR in 7 days
4.4
4.4

Hi, I can build the secure document verification portal with document-number checks, PDF upload support, API/OCR validation, audit trails, PDF reports, billing, invoicing, and admin reporting. The best solution is to create a secure web app where banks/financial institutions can verify Aadhaar, PAN, GST, Udyam, Passport, Driving Licence, ITR/Form 16 through authorized APIs or approved third-party gateways, with OCR/checksum validation where direct APIs are unavailable. I’m comfortable with secure web apps, PHP/C#/MySQL-based systems, OCR, API integrations, MFA, encryption, audit logs, PDF report generation, billing modules, invoice workflows, admin dashboards, and deployment documentation. Deliverables include: * Frontend and backend portal * Secure login with MFA * Document-number verification * PDF upload support * API/OCR/checksum validation * Encrypted data handling * Tamper-proof audit trail * Timestamped PDF reports * Usage-based billing * Invoice and payment module * Admin usage/revenue reports * Deployment/admin guide I’ll focus on consent-based, secure, scalable, and compliance-ready verification workflows. Best regards Ankit
₹12,500 INR in 2 days
3.7
3.7

Hi, I have reviewed your project and can build a secure document verification portal with API integrations, PDF reports, billing, and invoicing. I will deliver a scalable, reliable solution with clean code and a user-friendly admin panel.
₹25,000 INR in 3 days
3.3
3.3

Hello, Are you tired of manual document verification processes slowing down your financial institution's operations? I understand the pain of ensuring compliance with multiple document types efficiently. My solution is a cutting-edge document verification portal that seamlessly integrates with government and third-party data sources to validate Aadhaar, PAN, ITR, and more instantly. By automating the verification flow and generating timestamped PDF reports, your institution can ensure compliance with ease. I have a proven track record of developing secure web applications with advanced features like OCR, multifactor authentication, and encryption. My approach includes integrating reliable APIs, implementing robust data encryption measures, and providing a user-friendly billing module for easy payment processing. With my technical expertise and commitment to quality, I guarantee a seamless development process and reliable post-launch support. Check out my portfolio https://www.freelancer.com/u/rajeshrolen to see examples of my previous work. Let's discuss how we can bring your document verification portal to life. Feel free to open a chat with me to explore the project further. Sincerely, Rajesh Rolen
₹25,000 INR in 7 days
3.0
3.0

I've built secure web applications before with authentication, role-based access, payment integrations, and encrypted data handling, so I'm comfortable working on compliance-focused systems. Portfolio: https://fabsfolio.me.
₹15,000 INR in 1 day
2.6
2.6

The decision that makes or breaks this: which of those eight documents can actually be verified by API, and which cannot - because conflating the two is what creates legal exposure for a bank client. Aadhaar is the sharp one. Under the Aadhaar Act, authentication and eKYC are restricted to licensed AUAs/KUAs through UIDAI and require the holder's consent. A portal where an institution types someone's Aadhaar number and gets validation cannot be built on public APIs. The lawful routes are DigiLocker or Aadhaar offline XML/QR with consent, or operating through a licensed AUA partner. The number itself is never stored raw - Aadhaar Data Vault pattern, reference key only, audit trail records the reference. PAN runs through Protean/NSDL under an entity agreement, GST through GSTN, Udyam and Driving Licence via their portals or DigiLocker. So I build a provider abstraction: each document type gets a pluggable verifier - licensed API where one exists, consent-based DigiLocker where that is the lawful path, OCR with checksum only as a fallback labelled "extracted, not verified" in the report. A bank must never receive a PDF implying a check we didn't perform. Plus MFA, TLS 1.3 with encryption at rest, append-only audit trail, timestamped PDF report, and the billing module metering each request by document type into downloadable invoices with usage and revenue reporting. Rs 12,500, 3 days.
₹12,500 INR in 3 days
2.0
2.0

✅Plz review my proposal and reach out to me.✅ I have rich similar experience with this kind of secure fintech and document-processing platform development. I can build a scalable verification portal for Aadhaar, PAN, GST, Udyam, ITR, Form 16, Passport, and Driving Licence checks using authorized APIs and compliant fallback workflows. ✅ Develop secure user, client, and admin dashboards with MFA, role-based access, encrypted storage, audit logs, PDF upload, verification history, and status tracking. ✅ Integrate available government-authorized or licensed third-party APIs, plus OCR, QR, checksum, and document-consistency validation where direct verification access is unavailable. ✅ Generate timestamped PDF compliance reports and build usage-based billing with document-specific pricing, invoices, online payments, revenue reports, and client statements. The system will include secure API credential handling, webhook processing, rate limiting, data-retention controls, automated tests, deployment documentation, and an admin guide. My important questions are: 1. Do you already have approved API providers or government verification credentials? 2. Which payment gateway and billing model should the platform use? I’m ready to review the compliance requirements and propose a secure architecture with clear milestones. Best regards, Dipak
₹13,000 INR in 2 days
2.1
2.1

Leveraging my team's expertise in web development and software architecture, we at Designer Bros are more than equipped to create a top-notch document verification portal that fulfills all your specific requirements. By combining the latest technology advancements with deep industry knowledge, we have consistently delivered secure, scalable, and future-proof solutions. In terms of verifying the documents you mentioned, we'd integrate the system with direct API or gateway connections to the appropriate government or third-party data sources, utilizing robust OCR or checksum routines as a fallback option for services where APIs are unavailable. Ensuring security is paramount to us, so we'll implement multifactor authentication for users and adopt full encryption protocols to keep data in transit and at rest completely safe. We're proficient in handling large databases effectively in backend using MySQL. Additionally, our capability includes generating automated PDF reports for completed checks and establishing real-time billing and invoicing modules intricately tied to verification usage-- crucial features you've highlighted. If you entrust this project to us, not only will you get a fully functional web application but also deployment instructions and a brief admin guide.I am looking forward to entering your brand's digital world and guarantee a synthesized quality support along with timely assistance.
₹25,000 INR in 7 days
1.7
1.7

Hi, I read your requirements carefully. You need a secure document verification portal with API integrations, OCR support, automated PDF reports, and a billing system for financial institutions. I have 7+ years of experience in developing secure web applications, API integrations, OCR solutions, and database-driven platforms. I can build a scalable portal with role-based access, MFA, encrypted data storage, audit logs, government/third-party API integration where available, PDF report generation, and automated invoicing based on document verification usage. The solution will be secure, well-documented, easy to manage, and designed for future scalability. I can start immediately and would be happy to discuss the verification APIs and overall workflow. Best regards, Prachi Webix Infotech India Pvt. Ltd.
₹20,000 INR in 10 days
1.4
1.4

Building a secure document verification portal for banks, allowing instant validation of documents like Aadhaar, PAN, and ITR, is a project I can confidently deliver. I understand you need a reliable system for financial institutions to verify documents quickly and securely, combining official API checks with OCR fallbacks. I will build the complete web application, enabling users to verify documents by number or PDF upload. This includes secure integrations with official APIs, fallback OCR routines, multi-factor authentication, and full data encryption. Each completed check will generate a clear, timestamped PDF report. I will also implement the automatic billing module to track verification requests, price by document type, and handle online payments with basic usage and revenue reporting. My experience includes building an invoice processing system that used OCR and validation engines to extract and verify data from various document types, ensuring high accuracy. Have you considered how the system will handle potential API rate limits from government sources during peak usage? Let's discuss this and other details further whenever suits you.
₹19,000 INR in 15 days
0.0
0.0

Hi, my name is Wonita! ? I'm a web developer who enjoys creating clean, modern, and practical digital solutions. I believe good communication, attention to detail, and delivering quality work are just as important as technical skills. I specialize in: • Website Development • Web Application Development • E-commerce Solutions • Python Development • Digital Marketing For your Document Verification Portal, I will develop a secure, web-based application that meets all your requirements. My approach includes: - Implementing secure API integrations for document validation. - Ensuring multifactor authentication and full data encryption. - Creating an automated billing module with real-time invoicing. I have experience with compliance platforms and understand the nuances of fintech tools. You can view my portfolio [here](#). If you're ready to transform your idea into a robust solution, feel free to message me. I'd be happy to chat and see how I can help. Looking forward to hearing from you... and don't worry, I only debug code, not people's patience. ?
₹28,150 INR in 7 days
0.0
0.0

Hello, I can develop a secure, enterprise-grade document verification portal that enables financial institutions to validate Aadhaar, PAN, ITR, Form 16, GST, Udyam, Passport, and Driving Licence records through official APIs and trusted verification services, with OCR-based validation where applicable. The platform will include MFA, end-to-end encryption, detailed audit logs, automated PDF verification reports, and a scalable architecture built for security and compliance. I'll also implement a usage-based billing and invoicing module that tracks every verification request, generates invoices automatically, supports online payments, and provides revenue and usage dashboards. The solution will include clean documentation, deployment guidance, and an admin panel for easy management and future scalability. Please trust me and give me one chance to connect with you discussion on call so i will show you my previous work. Thanks and Regards, Sajan Verma
₹22,500 INR in 7 days
0.0
0.0

With my extensive experience in API development and authentication systems, I am confident that I can deliver the secure and reliable document verification portal you require. Having worked on similar projects in the past, I understand the importance of integrating with various data sources for accurate results. My skills in Node.js and Java for backend development, coupled with XML and JSON data proficiency will prove invaluable in securely managing and processing the multitude of documents like Aadhaar, PAN, ITR, Form 16, Udyam, GST, Passport, and Driving License. Moreover, I am well-versed with the challenges associated with sensitive data management and compliance for financial institutions. I have developed comprehensive admin dashboards that have helped monitor real-time client usage, generate invoices based on document type and pricing threshold. Furthermore, I always prioritize building clean code systems that scale easily- a vital aspect your project requires so as to accommodate increasing user base.
₹12,500 INR in 7 days
0.0
0.0

Hello, I’m a Full Stack Developer with 4+ years of experience in PHP, Laravel, React.js, Node.js, MySQL, and WordPress, building secure, scalable web applications and integrating third-party APIs. Your project aligns well with my experience. I can develop a secure document verification portal with: - Government/third-party API integrations for document validation - OCR support where APIs are unavailable Role-based access with MFA and encrypted data storage - Tamper-proof audit logs - Automated PDF verification reports with timestamps - Usage-based billing, invoicing, and payment integration - Admin dashboard with verification, revenue, and usage reports I focus on clean architecture, security best practices, and scalable development. The application will be well-documented, easy to maintain, and deployment-ready. I’d be happy to discuss your verification workflow, preferred APIs, and project timeline. I’m confident I can deliver a reliable, secure solution that meets your compliance requirements. Looking forward to working with you. Best regards, Sumeet
₹30,000 INR in 14 days
0.0
0.0

I have experience building secure fintech and compliance-focused platforms involving API integrations, document processing, authentication, reporting, and automated workflows. Based on your requirements, I would develop a verification portal that supports document validation, secure data handling, OCR-based processing where required, audit tracking, PDF reporting, and usage-based billing. My approach is to design a scalable architecture with strong security practices, implementing encrypted data storage, secure authentication, verification workflows, API integrations, automated invoice generation, and detailed reporting while ensuring compliance-focused reliability. I have worked with web applications, API integrations, OCR/document processing, database systems, payment workflows, and security-focused solutions, and I'm confident I can deliver a robust verification platform. I'd be happy to discuss your preferred verification providers and outline the implementation roadmap with clear milestones.
₹25,000 INR in 5 days
0.1
0.1

Yes, I can deliver this as a phased fintech implementation. Before confirming the final fixed price and timeline, I recommend a short discovery phase to validate API eligibility, provider onboarding and consent requirements for each document type. Some documents cannot lawfully or authoritatively be verified from the document number alone, so the platform will combine approved government or partner APIs, consent-based DigiLocker access, and cryptographic PDF/QR verification while clearly showing the assurance level of every result. The application will include MFA, encrypted tenant-isolated storage, tamper-evident audit records, digitally signed PDF reports, usage-based invoicing and secure online payment. Live API delivery will depend on the client providing or approving the required government and provider accounts.
₹35,000 INR in 20 days
0.0
0.0

Building a secure and robust Document Verification Portal that meets your advanced requirements is right up our alley at Vision Solutions. Our extensive experience in developing compliance platforms and fintech tools aligns perfectly with your project. We are conversant with APIs and can seamlessly integrate the necessary government or third-party data sources, including OCR or checksum routines where needed. Ensuring your users' peace of mind is crucial; therefore, we always prioritize multifactor authentication, full data encryption both in transit and at rest, as well as a tamper-proof audit trail. Lastly, Vision Solutions guarantees long-term technical support because we don't see clients as transactions but rather as invaluable relationships. Choose us for not only visionaries turning ideas into innovative digital experiences but also proactive tech partners who will optimize this portal even after deployment. Let's work together to create a 100% reliable document verification portal that exceeds your expectations!
₹12,500 INR in 7 days
0.0
0.0

Hello, I reviewed your requirements for the secure Document Verification Portal. I understand that the platform needs document verification workflows, secure user authentication, OCR-based processing, API or third-party integrations, encrypted data handling, audit logs, downloadable verification reports, and an automated billing system. I can help design and develop a secure, scalable web-based solution with a clean user interface and an admin dashboard. Before starting, I would like to clarify which authorized APIs or verification providers you plan to use for Aadhaar, PAN, GST, Passport, and other documents, as access requirements may differ for each service. I would be happy to discuss the technical architecture, development phases, timeline, and deliverables. Thank you.
₹20,000 INR in 7 days
0.0
0.0

This project immediately caught my attention because it is exactly the type of work I do best. Creating a secure, web-based portal for document verification aligns perfectly with my expertise in building clean, professional, and user-friendly systems. I understand the importance of seamless integrations with government APIs and the need for robust security measures like multifactor authentication and full data encryption. While I am new to freelancer, I have tons of experience and have done other projects off site. My background includes developing fintech applications with automated billing modules and detailed reporting features. If this sounds like what you're looking for I'd love to hear more about your project. Regards, Warrick Van Eeden
₹16,900 INR in 7 days
0.0
0.0

Mumbai, India
Member since Oct 22, 2023
₹600-1500 INR
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
$10-20 SGD / hour
$15-25 USD / hour
$250-750 USD
₹400-750 INR / hour
₹37500-75000 INR
₹1250-2500 INR / hour
₹400-750 INR / hour
$30-250 USD
$30-250 AUD
₹23000-25000 INR
₹750-1250 INR / hour
₹600-10000 INR
$10-30 USD
$250-750 AUD
$30-250 USD
₹750-1250 INR / hour
₹1500-12500 INR
$250-750 USD
$30-250 USD
₹100-400 INR / hour