Ada Marta Fejerman

Through her dual role as a scientist and an advocate, Ada Marta Fejerman is redefining what it means to study cancer. Her work reminds the scientific community that a person's risk is not just written in their DNA, but is also shaped by their history, their language, and their access to care. by Dr. Fejerman or learn more about the community programs she has established?

That night the town lit lanterns. People set afloat small paper boats painted with wishes, and Ada walked the shore with her husband. The sea took the boats and did not swallow them; it ferried them as if each paper hull were a message in a crowded bottle. Ada thought of all the broken things and the ways they learned to survive: a cracked teacup that became a plant’s cradle, a torn map rejoined with patience, a locket that carried a name across oceans. She thought of how every object she touched had given her a story as payment, and how each story folded into the next like a seam. Ada Marta Fejerman

Natalio Fejerman is a prominent Argentine neurologist. He is an honorary consultant in the Neurology Service at the Prof. Dr. Juan P. Garrahan Pediatric Hospital in Buenos Aires and a pioneer in pediatric neurology in Argentina and Latin America. He is perhaps best known for the "Fejerman syndrome" (benign nonepileptic myoclonus of infancy), a rare, non-epileptic movement disorder in infants that is not associated with developmental issues. He has also edited and co-authored several books in the field, including Trastornos del Desarrollo en Niños y Adolescentes (Developmental Disorders in Children and Adolescents) and the co-compiled work Neuropsicología infantil (Child Neuropsychology). Through her dual role as a scientist and

Ada Marta Fejerman

Digital Signature is used to sign electronic documents. DSC stands for "Digital Signature Certificate". The certificate is a software file stored in a special USB pen drive.

eMudhra Logo

Ada Marta Fejerman

Paper-less steps are now available to get a new Digital Signature. Paper-less process is faster, cheaper, and fully online.

Step 1: Enter applicant name, phone, email, and choose brand of DSC - eMudhra or Capricorn.

Step 2: After payment, receive an automatic e-mail with link to open CA Portal.

Step 3: Create KYC ID / PIN or use existing KYC ID.

Step 4: Upload PAN Card, Proof of Address, and a passport size photo. For Organization, additional documents must be uploaded.

Step 5: Record Video using phone or laptop. Read statement shown on screen.

Step 6: Certifying Authority will approve and issue Digital Signature Certificate.

Step 7: Download DSC and store on USB cryptographic token. The USB dongle must be either Hyp2003 Token (HyperPKI HYP2003 CSP India v3.0) or WatchData ProX Token (PROXKey CSP India V3.0).


Ada Marta Fejerman

DSC is now sold in only one class : Class-3. There will be no more Class-2 sold in 2021 as per CCA guidelines.

Class-3 DSC is sufficient to sign documents for a large variety of purposes - including tax returns (Income Tax /GST), invoice signing (Tally or PDF), completing Director's KYC, register new business firm on MCA Portal, applying Import Export Code (IEC), EPF Portal, etc.

Some Tender Portals require vendors to use Class-3 Digital Signature with encryption combo. Generally for tender bidders, Class-3 Combo is a safe recommended option.


What are HyperPKI or WatchData ProX tokens?

A special USB pen drive is required to store Digital Signature Certificates. The USB token is a cryptographic device that offers security with strong authentication and password protection.

Designed to be secure from virus attacks, the token has mechanisms to prevent thefts of Digital Signature. Tokens we sell comply with the FIPS 140-2 Level 3 security standards.

HyperPKI token

DSC Price

Paper-less steps have reduced the price of DSC. New or Renewal - applicants enjoy low price now. Price is not a barrier for common man to use Digital Signature.


Ada Marta Fejerman

For Individual persons, Class-3 will be the only DSC class sold in 2021. While the price was cheaper for Class-2, the Certifying Authority has stopped issuing Class-2 to comply with CCA guidelines. Only Class-3 DSC will be sold for Individuals from 2021 onwards. DSC is available with validity period of 1, 2, or 3 years.

Class-3 DSC can be used to file GST returns, income tax returns, signing invoices on Tally or any other accounting software, PDF signing, register new business on MCA portal, EPF, Director's KYC, and even some of the tender portals in India.

Buy Class-3 DSC

PAN Based DSC

Ada Marta Fejerman

Tender portals in India accept Class-3 Digital Signature to submit bids online. The type of applicant can be sole-proprietor, partnership firm, LLP, registered company, or trusts.

Authorized signatory for the organization must give permission for the issue of Class-3 Digital Signature to their staff.

Paper-less steps are now available to issue Class-3 Digital Signature for Organizations. DSC is available with validity period of 1 year, 2 years, or 3 years.

Applicants have option to buy only Signature, or Combo. The combo includes both Signature and Encryption. Check with Tender Inviting Authority if you need Combo.

Buy Class-3 (Organization)

PAN Based DSC

DSC Customer Care

DSC applicants receive premium support free of cost. Use live chat or contact support over phone or email. It is a simple experience to buy Digital Signature.

Few questions are answered in Digital Signature DSC FAQ. Got more questions? or live chat for immediate response.


How to record Video for DSC?

Open the e-mail received for video recording on your smart phone or computer.
  • Record video using camera on smartphone or computer.
  • Read the statement shown on screen - loud and clear.
  • Show documents to camera - original PAN Card and Address Proof
  • Applicant face must be visible
  • Duration of video will be for 20 seconds
Video Recording has been enabled with extra 4 languages (Kannada, Telugu, Tamil and Malayalam), in addition to Hindi & English.

What is eKYC? for DSC

KYC stands for Know-Your-Customer. Applicants upload Pan Card or Aadhaar XML to complete eKYC online. The process is completed online with upload of PAN Card and one proof of address. No attestation is required. There is no need send physical documents.

Scanned copies to Upload:

  1. PAN Card (front side copy)
  2. Passport size photo
  3. Any One Address Proof with applicant name
    • Aadhaar eKYC
    • Driving License
    • Voter ID
    • Passport

Steps to create e-KYC account using PAN Card

  • Step 1: Fill online application form and complete payment
  • Step 2: Open the e-mail received and click on DSC link
  • Step 3: Choose option to create e-KYC as "Pan Card Based"
  • Step 4: Enter PAN Number of Applicant. Automatically, name of the PAN Card holder will be fetched.
  • Step 5: Enter address as per proof of address
  • Step 6: Create new eKYC ID and PIN. An account will be created with 2 years validity.

What is Aadhaar e-KYC XML?

It is a secure sharable document which can be used by Aadhar number holder for offline verification of Identity.

Service Providers like telecom mobile companies, Digital Signature Providers, and others can establish identify of an individual using Aadhaar eKYC XML.

The XML file contains Name, Address, Photo, Gender, DOB, registered Mobile Number, Email address of resident among other details.


Steps to download Aadhaar XML file for eKYC

It is a secure sharable document which can be used by Aadhar number holder for offline verification of Identity.

Watch Online Video on how to download Aadhaar XML File

  • Step 1: Go to URL www.uidai.gov.in
  • Step 2: Enter 'Aadhaar Number' or 'VID' and mentioned 'Security Code' in screen, then click on 'Send OTP'
  • Step 3: Enter the OTP received by registered Mobile Number for the given Aadhaar Number
  • Step 4: Enter a Share Code which will be password for the ZIP file and click on 'Download' button
  • Step 5: The Zip file containing the digitally signed XML will be downloaded