Section 35 is the operative sanction of the entire Indian Stamp Act, 1899. The duty charged under the charging provisions would be a paper tiger were it not for this single command: a document that is chargeable with duty but not duly stamped shall not be admitted in evidence, acted upon, registered or authenticated. The bar is severe but not eternal — duty plus penalty cures it, and once a court has admitted the instrument, Section 36 slams the door on any later objection. For judiciary and CLAT-PG aspirants, Section 35 sits at the intersection of fiscal law, evidence and, since 2023, arbitration. This article maps the provision proviso-by-proviso and threads the leading Supreme Court authority through every limb. For the wider scheme see the Indian Stamp Act hub and the introductory note.
The Bar and Its Three Limbs
The main clause of Section 35 reads that no instrument chargeable with duty shall be admitted in evidence for any purpose by any person having by law or consent of parties authority to receive evidence, or shall be acted upon, registered or authenticated by any such person or by any public officer, unless such instrument is duly stamped. Three distinct consequences flow from a stamping default: the instrument cannot be admitted in evidence, cannot be acted upon, and cannot be registered or authenticated. The first limb governs courts and tribunals; the second reaches executive and quasi-judicial action; the third reaches the registering officer and the notary.
The bar is triggered by two cumulative conditions. The instrument must be (i) chargeable with duty under the charging scheme and (ii) not duly stamped within the meaning of Section 2(11). If either condition is absent the section simply does not apply. A document not chargeable at all escapes Section 35 entirely; an instrument that is fully and properly stamped is admissible as of right. The phrase "for any purpose" is deliberately wide, and Indian courts have read it to exclude even collateral use of a chargeable-but-unstamped instrument — a point developed below. For what counts as an instrument and what "duly stamped" means, read the definitions note alongside this section.
"Duly Stamped" — the Section 2(11) Test
Section 35 turns entirely on the phrase "duly stamped," which is defined in Section 2(11): an instrument is duly stamped when it bears an adhesive or impressed stamp of not less than the proper amount, and that stamp has been affixed or used in accordance with the law for the time being in force. Two requirements are therefore embedded — sufficiency of amount and regularity of mode. A document may carry stamps of the correct value yet still fail the test if the stamp is of the wrong description or has not been cancelled as the Act requires.
This is why "duly stamped" is broader than "insufficiently stamped." An instrument can be unstamped (no stamp at all), insufficiently stamped (stamp of less than proper value), or improperly stamped (right value, wrong mode). All three fall outside Section 2(11) and so attract the Section 35 bar, though the proviso machinery treats them differently. The technical content of sufficiency and mode is set out in the notes on liability of instruments to duty and mode of stamping.
The Fiscal Purpose — Hindustan Steel v. Dilip Construction
The animating philosophy of Section 35 was crystallised in Hindustan Steel Ltd. v. Dilip Construction Co., AIR 1969 SC 1238 : (1969) 1 SCC 597. The Supreme Court held that the Stamp Act is a fiscal measure enacted to secure revenue for the State on certain classes of instruments; it is not enacted to arm a litigant with a weapon of technicality to meet the case of an opponent. The stringent provisions of the Act are conceived in the interest of revenue, and once that object is secured according to law, the party staking a claim on the instrument is not to be defeated on the ground of an initial defect in the stamping.
This revenue-protective rationale governs the interpretation of every limb of Section 35 and its provisos. It explains why the defect is curable, why penalty rather than forfeiture is the norm, and why courts lean against allowing stamp objections to become instruments of obstruction. The same principle was echoed decades later in Seetharama Shetty v. Monappa Shetty, 2024 INSC 650, where the Court reiterated that the Stamp Act is fiscal legislation and that its machinery must be applied so as to collect duty, not to defeat genuine claims.
The Proviso Machinery — Clauses (a) to (e)
The single proviso to Section 35 carries five clauses that soften or qualify the absolute bar. Clause (a) is the workhorse: any instrument that is not duly stamped shall be admitted in evidence on payment of the duty with which it is chargeable, or, in the case of an instrument insufficiently stamped, of the amount required to make up such duty, together with a penalty. The penalty in the principal Act is five rupees, or, where ten times the proper duty or deficient portion exceeds five rupees, a sum equal to ten times such duty or deficient portion. Many States have amended the penalty ceiling upward, so the local schedule must always be checked.
Clause (b) deals with unstamped receipts, allowing admission on payment of one rupee. Clause (c) addresses contracts effected by correspondence: where a contract is constituted by two or more letters and any one of them bears the proper stamp, the contract is deemed duly stamped. Clause (d) preserves admissibility of instruments in criminal proceedings other than under Chapter XII or Chapter XXXVI of the Code of Criminal Procedure. Clause (e) protects instruments executed by or on behalf of the Government, and instruments bearing the Collector's certificate under Sections 32 or 34. The detailed timing rules that determine whether stamping was contemporaneous appear in the time of stamping note.
Penalty Discretion — H.C. Dhanda Trust
Clause (a) speaks of a sum "equal to ten times" the duty, but the Supreme Court has firmly held that this is a ceiling, not a default. In Trustees of H.C. Dhanda Trust v. State of Madhya Pradesh, (2020) 9 SCC 510, the Collector had mechanically imposed the maximum ten-times penalty. The Court set it aside, holding that where discretion is conferred on a public authority it must be exercised reasonably and not in an oppressive manner. The extreme penalty cannot be levied merely because there has been an evasion of duty; it is justified only where the conduct of the party is shown to be dishonest or contumacious.
The decision converts the penalty limb of Section 35 from a fixed multiplier into a calibrated, fact-sensitive power. Adjudicating authorities and courts impounding documents must record reasons proportionate to the nature of the default. The companion machinery for adjudication and for the Collector's certificate is dealt with in the note on determination and adjudication of stamp duty.
Section 35 and the Duty to Impound
Section 35 does not operate in isolation. When an instrument chargeable with duty is produced before a person authorised to receive evidence and is found not duly stamped, Sections 33 and 38 require that it be impounded, and Section 35 then bars its use until duty and penalty are paid. In Ram Rattan v. Bajrang Lal, AIR 1978 SC 1393 : (1978) 3 SCC 236, the Supreme Court held that the duty to impound is mandatory: a civil court, being a person having authority to receive evidence, must impound an insufficiently stamped instrument produced before it and proceed under Section 35 to recover the deficit duty and penalty before the document can be admitted.
The Court clarified that impounding is not discretionary once the defect is noticed; the court cannot simply return the document or ignore the deficiency. This reading harmonises Section 35 with the collection machinery of Chapter IV. The sequence — produce, notice the defect, impound under Section 33, recover under Section 35, then certify under Section 42 — was restated and systematised in Seetharama Shetty v. Monappa Shetty, 2024 INSC 650, which summarised the order in which the provisions on insufficiently stamped instruments apply.
The mandatory character of the impounding duty has an important consequence for the trial judge: a stamping defect cannot be waived by the court even if neither party raises it, because the duty to impound is owed to the revenue and not merely to the litigants. The court is itself a person "having by law authority to receive evidence" within the opening words of Section 35, and the obligation crystallises the moment the deficiency is noticed. At the same time, the cure is administrative rather than punitive in spirit — payment of the deficit plus a proportionate penalty fully restores the instrument — so the impounding step is a gateway to admissibility, not a permanent disqualification.
No Collateral Use — Avinash Kumar Chauhan
A recurring question is whether a chargeable-but-unstamped instrument may be looked at for some collateral or limited purpose even if it cannot prove the transaction itself. The Stamp Act answers in the negative, in sharp contrast to the Registration Act, where an unregistered document may be used for collateral purposes. In Avinash Kumar Chauhan v. Vijay Krishna Mishra, (2009) 2 SCC 532, the Supreme Court held that a document chargeable with duty but not duly stamped cannot be received in evidence for any purpose whatsoever, including a collateral purpose, because Section 35 uses the words "for any purpose."
The Court also confirmed that the obligation to impound under Section 33 read with Section 35 falls on the court the moment the deficiency is noticed, and the appropriate course is to impound and recover duty and penalty rather than to reject the document outright. The width of "for any purpose" is therefore the feature that most sharply distinguishes the Stamp Act bar from the registration bar, and it is a favourite examination contrast.
Section 36 — the Curative Cut-Off
Section 35 is balanced by Section 36, which provides that where an instrument has once been admitted in evidence, such admission shall not, except as provided in Section 61, be called in question at any stage of the same suit or proceeding on the ground that the instrument has not been duly stamped. In Javer Chand v. Pukhraj Surana, AIR 1961 SC 1655, the Supreme Court held that once a court has admitted a document in evidence and marked it as an exhibit, the question is closed; neither the trial court itself, nor an appellate or revisional court, can go behind that order on the ground of insufficient stamping.
The corollary is procedural diligence. The objection that a document is unstamped or insufficiently stamped must be taken when the document is tendered, and it must be decided before the document is marked. If a party allows the document to be admitted without objection, the bar of Section 35 is spent and Section 36 forecloses any later challenge. The only escape is Section 61, which lets a higher court note an improper admission but does not undo the evidentiary status of the document in the original proceeding. The interplay of Sections 35 and 36 is thus a single mechanism: 35 keeps the defective instrument out; 36 makes the gatekeeping decision final once taken.
Documents Not Chargeable — Vijay v. Union of India
Section 35 has no application at all unless the instrument is chargeable with duty. This threshold was underscored in Vijay v. Union of India, 2023 SCC OnLine SC 1585, where the Supreme Court held that the bar under Section 35 operates only when the instrument is both chargeable with duty and not duly stamped. If a document was never chargeable — for instance because the charging provision did not extend to it at the time of execution — Section 35 cannot be invoked to exclude it, and a copy may be adduced as secondary evidence where the other legal requirements of secondary evidence are met.
The decision is a useful reminder that the stamping enquiry is downstream of the chargeability enquiry. Practitioners must first ask whether duty was payable at all under the Schedule as it stood on the date of execution; only if the answer is yes does the "duly stamped" question arise. Amendments imposing fresh stamp obligations do not apply retrospectively to instruments executed before they came into force, so chargeability is frozen at the date of execution.
Secondary Evidence and Unstamped Originals
Where the original of a chargeable instrument is unstamped, a party cannot ordinarily bypass Section 35 by leading secondary evidence of its contents. The settled position is that the bar attaches to the instrument and to proof of its terms, so a copy of an unstamped chargeable instrument is no more admissible than the original itself; the deficiency must first be cured. This prevents the obvious circumvention of tendering a photocopy to prove a deal that the unstamped original could not prove.
The position is different where the document was not chargeable, as Vijay v. Union of India shows — there, secondary evidence of a copy may be received if the foundational requirements for secondary evidence are satisfied. It is also different where the chargeability arises only on a later amendment that does not bind a pre-amendment instrument. The lesson for the examinee is to keep three questions separate: Was the instrument chargeable? Is the original duly stamped? Is secondary evidence being led to prove a chargeable-but-unstamped instrument? Only the third squarely attracts the Section 35 prohibition.
The rationale is structural. If a party could prove the contents of an unstamped chargeable original by leading a copy, the entire revenue object of the Act would collapse, because every defaulter would simply withhold the original and tender secondary evidence. The bar therefore travels with the transaction the instrument records, not merely with the physical paper. Where the original has been impounded and the deficit duty and penalty paid, secondary evidence of a now-validated instrument stands on a different footing and the ordinary rules of the Evidence Act apply. The distinction the student must hold onto is between a document that the Stamp Act forbids the court to look at, and a document that has passed the fiscal gate and is governed thereafter only by the law of evidence.
Arbitration Agreements — From SMS Tea to the Interplay Reference
The most contested modern application of Section 35 concerns arbitration agreements embedded in unstamped contracts. In SMS Tea Estates Pvt. Ltd. v. Chandmari Tea Co. Pvt. Ltd., (2011) 14 SCC 66, the Supreme Court held that if a contract containing an arbitration clause is unstamped or insufficiently stamped, the arbitration clause cannot be acted upon under Section 35 until the deficit duty and penalty are paid, and the court must impound the instrument before referring the dispute to arbitration.
The controversy escalated in N.N. Global Mercantile Pvt. Ltd. v. Indo Unique Flame Ltd., where a five-judge bench by 3:2 on 25 April 2023 held that an unstamped arbitration agreement is not enforceable and is non-existent in law until stamped. That ruling was swiftly overruled by a seven-judge bench in In Re: Interplay between Arbitration Agreements under the Arbitration and Conciliation Act, 1996 and the Indian Stamp Act, 1899, decided 13 December 2023. The Court held unanimously that non-stamping or insufficient stamping is a curable defect that renders the agreement inadmissible in evidence but not void or unenforceable; the arbitral tribunal, not the referral court, examines stamping, and once the defect is cured the agreement is fully enforceable.
The Interplay reference thus realigns Section 35 with the Hindustan Steel philosophy: inadmissibility is a temporary, curable disability directed at securing revenue, not a substantive nullity. For arbitration practitioners the practical takeaway is that a stamping objection no longer stalls the appointment of an arbitrator under Section 11 of the Arbitration Act.
Stamp Act Versus Registration Act — a Critical Distinction
Examiners routinely test the contrast between inadmissibility under the Stamp Act and inadmissibility under Section 49 of the Registration Act, 1908. The two bars look similar but operate very differently. Under the Stamp Act, the defect is curable — duty and penalty restore full admissibility, and Section 36 then makes admission final. Under the Registration Act, the defect is generally incurable for purposes of proving the transaction the document was meant to effect, though the document may be used for a collateral purpose.
The collateral-purpose dimension is exactly inverted. A chargeable-but-unstamped instrument cannot be used even collaterally, as held in Avinash Kumar Chauhan, because Section 35 says "for any purpose." An unregistered document, by contrast, may be admitted to prove a collateral fact such as the nature of possession. A document may of course suffer from both defects simultaneously, in which case the stamping defect is dealt with first by impounding and payment, and the registration defect is then assessed for collateral use.
Old Stamp Paper and Undated Instruments
A practical question that intersects with Section 35 is whether the use of old or stale stamp paper renders an instrument not duly stamped. In Thiruvengada Pillai v. Navaneethammal, (2008) 4 SCC 530, the Supreme Court held that there is no provision in the Indian Stamp Act prescribing the validity period of stamp paper, and the use of stamp paper purchased more than six months before the date of execution does not, by itself, render the instrument invalid or insufficiently stamped. The six-month rule under the State stamp rules governs the seller's obligation to refund, not the validity of the instrument.
The age of the stamp paper may, however, be a circumstance casting doubt on the authenticity or date of an agreement when authenticity is independently in issue — but that is a question of appreciation of evidence, not of admissibility under Section 35. The two questions must be kept distinct: Section 35 asks whether the instrument is duly stamped in amount and mode, not whether the stamp paper is freshly purchased.
Practice Points and Examination Checklist
For revision, reduce Section 35 to a sequence. First, is the instrument chargeable with duty under the Schedule as it stood on the date of execution? If not, Section 35 does not apply (Vijay v. Union of India). Second, is it duly stamped in amount and mode under Section 2(11)? If yes, it is admissible as of right. Third, if it is chargeable but not duly stamped, the court must impound it under Section 33 and admit it only on payment of duty plus a proportionate penalty under proviso (a) (Ram Rattan; H.C. Dhanda Trust).
Fourth, remember that the bar reaches every purpose, collateral included (Avinash Kumar Chauhan). Fifth, once the document is admitted and exhibited without objection, Section 36 forecloses any later challenge (Javer Chand). Sixth, for arbitration agreements the defect is curable and inadmissibility is not nullity (In Re Interplay, overruling N.N. Global). Anchoring the whole scheme is the fiscal philosophy of Hindustan Steel: the Act protects revenue, not technicality. To place Section 35 within the full Chapter IV machinery, return to the Indian Stamp Act hub.
Frequently asked questions
Can an unstamped document be used in court for a collateral purpose?
No. Unlike an unregistered document, a chargeable-but-unstamped instrument cannot be used for any purpose, including a collateral one, because Section 35 uses the words "for any purpose." This was confirmed in Avinash Kumar Chauhan v. Vijay Krishna Mishra, (2009) 2 SCC 532. The court must impound the document and recover duty and penalty before it can be used at all.
How is an insufficiently stamped document made admissible?
Under proviso (a) to Section 35, the document is admitted on payment of the deficit duty together with a penalty — up to ten times the proper duty or deficient portion. The court impounds the instrument under Section 33 and admits it once the amounts are paid. The penalty is a ceiling, not automatic; Trustees of H.C. Dhanda Trust v. State of M.P., (2020) 9 SCC 510, requires it to be proportionate and reserved for dishonest or contumacious conduct.
What is the difference between Section 35 and Section 36?
Section 35 keeps a chargeable-but-unstamped instrument out of evidence until duty and penalty are paid. Section 36 provides that once an instrument has been admitted in evidence, that admission cannot be questioned at any later stage of the same suit on the ground of insufficient stamping, except under Section 61. Javer Chand v. Pukhraj Surana, AIR 1961 SC 1655, holds that the stamping objection must be taken when the document is tendered, or it is lost.
Are unstamped arbitration agreements valid after the 2023 Supreme Court rulings?
Yes. In In Re: Interplay between Arbitration Agreements and the Indian Stamp Act (seven-judge bench, 13 December 2023), the Supreme Court held that non-stamping is a curable defect that renders an arbitration agreement inadmissible but not void or unenforceable. It overruled N.N. Global v. Indo Unique Flame (5-judge, 3:2, 25 April 2023), which had treated such agreements as non-existent in law.
Does Section 35 apply if the document was never chargeable with duty?
No. The bar applies only where the instrument is both chargeable with duty and not duly stamped. In Vijay v. Union of India, 2023 SCC OnLine SC 1585, the Supreme Court held that if a document was not chargeable — for example because the charging provision did not cover it at the date of execution — Section 35 has no application, and a copy may even be led as secondary evidence where other requirements are met.
Does old stamp paper make an instrument not duly stamped under Section 35?
No. In Thiruvengada Pillai v. Navaneethammal, (2008) 4 SCC 530, the Supreme Court held that the Stamp Act prescribes no validity period for stamp paper, so using stamp paper purchased more than six months earlier does not by itself render an instrument insufficiently stamped. The age of the paper may bear on authenticity as a matter of evidence, but not on admissibility under Section 35.