Identify Your Problem
What's Wrong With Your DSC? We Fix All of These.
Pick your situation — we handle everything at our BBD Bagh office or online via WhatsApp
⏰
DSC Expired
Portal says "DSC expired" or "certificate validity ended". Your DSC has crossed its 1/2/3 year validity. Happens most commonly during GST return season.
✅ Fix: Renew DSC — same token, no new docs
₹840 + GST · 15 min at BBD Bagh
❌
DSC Not Working on Portal
DSC is valid but portal throws error — "invalid signature", "certificate not recognized", "DSC mismatch". Could be driver issue, browser setting or revoked certificate.
✅ Fix: Driver reinstall / fresh DSC — 15 min
₹0–₹840 + GST · depends on issue
🔑
USB Token Not Detected
Computer doesn't recognise the USB token. No popup, no certificate list. Usually a driver problem — Proxkey or HYP ePass drivers not installed or corrupted.
✅ Fix: Driver reinstall (often free) — 5 min
Often Free · New token ₹590 if damaged
🏛️
GST Portal DSC Error
"DSC not registered", "signature invalid" on gst.gov.in. Common during new GST registration, GSTR-9 filing, ITC reversal or GST audit responses.
✅ Fix: New DSC or renewal + GST re-register
₹840 + GST · Includes portal test
💰
Income Tax Portal Error
"DSC not matched with PAN", "certificate revoked" on incometax.gov.in. Occurs during ITR filing, tax audit (Form 3CB), or DSC registration errors.
✅ Fix: Re-register DSC on IT portal after renewal
₹840 + GST · With PAN re-linking support
🆕
Need New DSC (First Time)
Never had a DSC before. Required for new GST registration, MCA director filing, e-tender bid, EPFO employer login or ICEGATE customs.
✅ Fix: New DSC issuance · Walk-in 15 min
₹840 + GST · Class 3 Individual
Portal-Wise Errors
Exact DSC Errors by Portal — and How We Fix Them
🏛️ GST Portal
"DSC not registered" / "Invalid Signature"
Renew or get new DSC → re-register on GST portal. Portal test included.
Fix Now →
💰 Income Tax
"DSC mismatch" / "Certificate Expired"
Renewal + re-link to PAN on incometax.gov.in. Audit report signing support.
Fix Now →
🏢 MCA / ROC
"DSC not valid for this form" / DIN mismatch
Director DSC linked to DIN renewed. DIR-3 KYC and annual return support.
Fix Now →
🏗️ E-Tender / GeM
"Signature verification failed" / Bid rejected
Org Combo DSC renewed or issued. Tested on tender portal before you leave.
Fix Now →
👷 EPFO / PF
"DSC not registered" / Employer login error
New or renewed DSC registered on EPFO employer portal. ECR filing support.
Fix Now →
🚢 ICEGATE / Customs
"DGFT DSC expired" / Shipping Bill error
DGFT class DSC renewed. ICEGATE re-registration. Bill of Entry support.
Fix Now →
Renew or New DSC?
Should You Renew Your Existing DSC or Get a New One?
♻️ DSC Renewal
Your DSC expired — renew on same token
Most Common
1
Bring your USB token
The same Proxkey / HYP ePass token that had your old DSC. No new token needed — saves ₹590.
⏱ Just walk in
2
No new documents
If your name, PAN and Aadhaar details haven't changed — zero new documents required. Just your Aadhaar-linked mobile for OTP.
⏱ 2 minutes
3
New DSC loaded on same token
Fresh 2-year certificate loaded onto your existing token. Portal tested before you leave.
✅ Done in 15 min
₹840 + GST = ₹991
📍 Walk-in · BBD Bagh · Mon–Sat
📞 9051855666
🆕 New DSC Issuance
First time or replacing damaged/lost token
Walk-in 15 Min
1
Bring PAN + Aadhaar
Original PAN and Aadhaar card. Aadhaar-linked mobile mandatory for OTP verification. No other documents.
⏱ Original docs only
2
Staff handles everything
We fill the form, do Aadhaar OTP KYC and guided Video KYC — all in under 5 minutes. You don't touch any portal.
⏱ 5 minutes
3
DSC + Token + Portal Test
New Proxkey USB token loaded with your Class 3 DSC. Installed and tested on your target portal before you leave.
✅ Working DSC in hand
₹1,581 all-in
📍 Walk-in or Online via WhatsApp
💬 WhatsApp
Documents
What Documents Do You Need to Bring?
♻️ For Renewal
🆕 For New DSC
🏢 For Org/Company
🔑
Existing USB Token (Proxkey / HYP ePass)📱
Aadhaar-Linked Mobile (for OTP)❌
PAN Card — Not Needed (if unchanged)❌
Aadhaar Card — Not Needed (if unchanged)✅ If your name, PAN and Aadhaar haven't changed since last DSC — just bring your USB token and Aadhaar-linked mobile. That's it. No other documents. Renewal in 15 minutes.
🪪
PAN Card (original)📋
Aadhaar Card (original)📱
Aadhaar-Linked Mobile (for OTP)✉️
Email Address (for certificate)⚠️ Aadhaar-linked mobile is mandatory — OTP comes on this number during Video KYC. If your mobile is not linked to Aadhaar, call us first — we have an alternate process.
🪪
Authorised Person's PAN Card📋
Authorised Person's Aadhaar📱
Aadhaar-Linked Mobile🏢
Company Registration Certificate📄
Authorisation Letter (on letterhead)✉️
Company Email ID💡 For tender / e-procurement: Org Combo DSC (Sign + Encrypt) is required. For MCA ROC filings: Director's DSC with DIN. Call us to confirm exact type for your use case.
Pricing
DSC Renewal & New DSC — Transparent Pricing
No hidden charges. No agent markup. Reuse your existing token and save ₹590.
Type
Base Price
+ GST Total
With New Token
Individual DSC Renewal
Income Tax · GST · MCA · EPFO
MOST COMMON
₹840+GST
₹991 total
₹1,581 with token
Org Combo DSC Renewal
E-Tender · GeM · ROC · MCA Company
₹1,500+GST
₹1,770 total
₹2,360 with token
DGFT DSC Renewal
ICEGATE · Customs · Shipping Bill
₹1,500+GST
₹1,770 total
₹2,360 with token
New Individual DSC
First-time · Fresh certificate + token
₹840+GST
₹991 total
₹1,581 with token
💡 Reuse your token: If your Proxkey or HYP ePass is still working — we load the new DSC onto it free. You only pay the ₹840 base price. No forced token purchase.
Why So Fast
Why We Fix DSC Issues in 15 Minutes — Others Take 24 Hours
🏢
Physical Office, Not a Website
Walk in to HMP House, BBD Bagh — no appointment. Our staff handles everything on the spot. Others are phone-only agents who forward your request to someone else.
⚡
Direct Certifying Authority Line
We are a direct CA-licensed partner with no intermediary chain. DSC approval happens in real-time — not overnight batch processing like resellers.
🔧
We Install and Test for You
We install drivers, load the DSC on your token, and test it on the exact portal you need — GST, MCA, Income Tax — before you leave our office.
📞
10-Minute Callback Guarantee
Fill the form — we call you back within 10 minutes to understand your problem and advise the fastest solution. No automated responses.
📦
Same Day Delivery if You Can't Visit
Can't come to BBD Bagh? We process via WhatsApp + Video KYC and dispatch via Uber/Porter same day across Kolkata. Next day across all of West Bengal.
🇧🇩
Bengali · Hindi · English Support
Our staff speaks Bengali. No language barrier — explain your problem in Bengali and get the fastest, clearest solution.
Client Reviews
What Kolkata Clients Say After We Fixed Their DSC
A
Amit Jha
Renewal · GST portal error fixed
★★★★★
"My DSC expired just before the GST deadline. Called them at 11 AM, was in their office by 12, had a working DSC by 12:20. Literally saved my day."
✓ Google Review
S
Sunita Agarwal
Income Tax portal · DSC not working
★★★★★
"My DSC showed invalid on income tax portal. Their staff diagnosed it as a driver issue, reinstalled everything and tested right there. Took 20 minutes. No charge for driver fix."
✓ Google Review
M
Md. Farooq
EPFO portal · New DSC
★★★★★
"Needed DSC for EPFO employer login urgently. Got it in 15 minutes. They tested it on EPFO portal before I left. Price was also much lower than I had been quoted elsewhere."
✓ Google Review
P
Priya Sinha
Org Combo · E-Tender bid
★★★★★
"Our tender submission was getting rejected due to DSC error. Came to BBD Bagh in panic. They renewed our Org Combo DSC, tested on the portal, submitted the bid — all in one visit."
✓ Google Review
FAQ
DSC Error & Renewal — Common Questions
Visit our BBD Bagh office with your USB token and Aadhaar-linked mobile. If your name, PAN and Aadhaar details haven't changed, no new documents are needed. Renewal takes 15 minutes and costs ₹840 + GST. Your existing token is reused — saving ₹590.
This is usually a driver issue — the Proxkey or HYP ePass drivers are missing or corrupted. Or your browser is blocking the DSC plugin. Call us at 9051855666 — we'll diagnose it in 2 minutes on the phone and advise whether you need to visit or whether it can be fixed remotely.
15 minutes from the time you walk in. This includes form submission, Aadhaar OTP verification, 30-second Video KYC, DSC issuance, token loading, driver installation and portal testing. No waiting if you walk in during weekday hours.
No — not if your details are unchanged. If your name, PAN and Aadhaar are the same as when you got the last DSC, we only need your USB token and your Aadhaar-linked mobile for OTP. Zero new paperwork. This is the most common renewal scenario.
Yes. Walk-in at any time between 10 AM–7 PM Monday–Saturday. DSC renewed in 15 minutes, portal tested, you file immediately. Or apply online via WhatsApp for same-day Kolkata delivery if you can't visit in person. Call 9051855666 first if it's extremely urgent.
Yes. WhatsApp your details to +91 70444 44142. We process via a 30-second guided Video KYC. Your renewed DSC is dispatched via Uber/Porter same day if you're in Kolkata, or next-day courier across West Bengal. For all other locations — courier anywhere in India.