​KembaraXtra – Indian Evidence Law – Bharatiya Sakshya Adhiniyam – Opinion as to Handwriting and Signature, When Relevant (Section 41)
1. Basic Principle of Section 41Under Section 41 of the Bharatiya Sakshya Adhiniyam, the law provides that:
When the court has to determine who has written or signed a document, the opinion of a person who is acquainted with the handwriting of the alleged writer or signatory is a relevant fact.
This means that where the authorship or signature of a document is in dispute, the court can rely on the opinion of individuals who are familiar with the handwriting of the person concerned.

2. Meaning of “Acquainted with Handwriting”A person is considered to be acquainted with another’s handwriting if such familiarity arises through recognized modes. These include:

1. Direct observation
   When a person has actually seen the individual write.
2. Exchange of correspondence
   When a person has sent communications and received replies purportedly written by the same individual.
3. Ordinary course of business
   When documents allegedly written by that person are regularly handled, examined, or processed in professional dealings.

Thus, acquaintance does not require formal training—it arises from repeated exposure and experience.

3. Illustration Explained
​Suppose the court must determine whether a letter was written by A, a merchant:

• B, another merchant, has exchanged letters with A
• C, B’s clerk, regularly handled such correspondence
• D, B’s broker, reviewed those letters for advice

Even if none of them has seen A write, their opinions are still relevant because they have had consistent interaction with A’s purported handwriting.

4. Scope of the ProvisionHandwriting is inherently individualistic and distinctive, and no two persons write exactly alike. Therefore:

• When disputes arise regarding authorship or signatures,
• The law permits reliance on the opinion of persons familiar with such handwriting

This provision makes such opinion evidence admissible and relevant, ensuring that practical familiarity is not ignored.

5. Categories of Persons Acquainted with Handwriting(i) Persons Who Have Seen the Individual WriteIn Fakhruddin v State of Madhya Pradesh, the Supreme Court held that:

• Evidence of a witness who has seen the person write constitutes direct evidence.
• If such evidence is available, it is highly reliable and may reduce the need for other forms of proof.

(ii) Persons Who Have Received CorrespondenceA person who:

• Sends letters, and
• Receives replies from the concerned individual

may form a valid opinion regarding the handwriting. This is especially relevant in commercial dealings.

(iii) Persons Handling Documents in the Course of BusinessIndividuals who, due to their professional duties, regularly deal with such documents may also give relevant opinions. For example:

• Clerks handling correspondence
• Brokers or advisors reviewing documents
• Professionals examining such writings

Their repeated exposure provides sufficient familiarity with the handwriting.

6. Difference Between Section 39 and Section 41

• Section 39: Deals with opinions based on scientific or expert comparison (e.g., handwriting experts using technical analysis).
• Section 41: Deals with opinions based on familiarity acquired through experience and observation.

In both cases, the court must independently assess whether the opinion is reliable and trustworthy before acting upon it.

7. Electronic Signatures (Section 41(2))Section 41 also addresses modern digital authentication:
When the court has to determine the authenticity of an electronic signature, the opinion of the Certifying Authority that issued the Electronic Signature Certificate is relevant.
Illustration

• A sends an email with an electronic signature
• The certificate was issued by a Certifying Authority (e.g., X & Co.)
• If the authenticity is questioned, the opinion of that authority becomes relevant

This provision ensures that traditional evidentiary rules extend to digital transactions and electronic records.

8. Evidentiary Value
​The weight of such opinion depends on:

• The degree of familiarity of the witness
• The frequency and nature of exposure to the handwriting
• The consistency of the opinion with other evidence

Courts must ensure that the opinion is based on genuine knowledge and not mere assumption.

9. Key Takeaways

• Section 41 makes opinion evidence regarding handwriting and signatures relevant.
• Familiarity may arise through:
  • Direct observation
  • Correspondence
  • Business dealings
• Direct evidence (seeing someone write) has the highest evidentiary value.
• The section also includes electronic signatures through Certifying Authorities.
• Courts must critically evaluate the credibility of such opinions.

In One Line
Handwriting and signatures can be proved through the reliable opinion of those who are genuinely familiar with them.