Thesis Flagged for Plagiarism? What Your Similarity Score Means

A software report came back at 34 percent and Nithya Raghavan spent a week convinced her doctorate was over. It was not. At that number the rule does not cancel anything. It requires her to submit a revised script within a fixed period. The panic came from not knowing where the lines are drawn, and from a supervisor who quoted a number that is nowhere in the regulation.

Your similarity percentage is not your university's opinion. Since 2018 it maps onto four named levels set by a central regulation, with the penalty for each level written down. Knowing which level you are in, and what the check was supposed to exclude before it produced that number, is most of the battle.

These are the penalties the Institutional Academic Integrity Panel imposes for plagiarism in a submitted thesis or dissertation.

• Level 0, similarities up to 10 percent. Minor similarities. No penalty.
• Level 1, above 10 percent to 40 percent. You are asked to submit a revised script within a stipulated period not exceeding six months. Your registration is not touched.
• Level 2, above 40 percent to 60 percent. You are debarred from submitting a revised script for one year.
• Level 3, above 60 percent. Your registration for that programme is cancelled.

Two riders sit underneath the ladder and both matter.

1. Repeat offences move you up a rung. A student who plagiarises again is punished at one level higher than the level previously committed. Where the highest level has already been reached, that punishment stands.
2. A degree already awarded is not out of reach. If plagiarism is proved after the degree or credit was awarded, the degree or credit is put in abeyance for a period recommended by the panel and approved by the head of the institution.

Penalties for plagiarism in academic and research publications are not the same as for a thesis, and staff are treated more severely at the upper levels.

A repeated Level 3 offence takes it out of the regulation's own ladder and into service rules, where disciplinary action including suspension or termination becomes available to the institution.

This is the part most students never read, and it is where inflated scores usually come from. The regulation says the similarity check shall exclude the following.

• All quoted work reproduced with the necessary permission or attribution.
• All references, the bibliography, the table of contents, the preface and the acknowledgements.
• All generic terms, laws, standard symbols and standard equations.

There is one more exclusion in the note that follows, and it is the most useful sentence in the document for anyone arguing about a number. The check excludes common knowledge or coincidental terms up to fourteen consecutive words.

So before you accept a percentage, ask a plain question in writing: was the report generated with the bibliography, the table of contents and properly attributed quotations excluded? A raw score on a whole document, including the reference list, is not the figure the regulation is describing. Running the check again with the correct exclusions frequently moves a thesis down a level, and sometimes down to Level 0.

The same note sets the positive standard, and it is narrower than people assume. The research work has to be based on original ideas, and the parts that must carry no similarity are specifically the abstract, summary, hypothesis, observations, results, conclusions and recommendations.

That is a targeted list. A literature review that necessarily restates the field is not being judged the same way as your results and conclusions. If your similarity is concentrated in the review and in standard method descriptions, say so explicitly and show where it sits, because the regulation itself distinguishes between the two.

1. Someone reports it, with proof. Any member of the academic community who suspects plagiarism, with appropriate proof, reports it to the Departmental Academic Integrity Panel. The institution can also take notice on its own motion.
2. The departmental panel investigates and submits its recommendations to the Institutional Academic Integrity Panel.
3. The institutional panel imposes the penalty, considering the severity.
4. You get a hearing. The regulation is explicit that a penalty follows only when plagiarism has been established without doubt, when all avenues of appeal have been exhausted, and when the individual has been given enough opportunity to defend themselves in a fair and transparent manner.

That last point is your strongest procedural protection. A penalty imposed without a hearing, or before your appeal is decided, is not what the regulation contemplates.

• Get the full report, not the number. Ask for the complete similarity report showing sources and matched passages, not a one line percentage.
• Ask which exclusions were applied. Put the question in writing, listing the four categories above.
• Map your matches. Separate attributed quotations, the bibliography, standard equations and boilerplate from anything that is genuinely unattributed.
• Check the fourteen word rule against strings the software has flagged as coincidental.
• Ask for the panel's constitution and the procedure it will follow, and for time to respond in writing.
• Do not submit a hasty rewrite before you know your level. At Level 1 a revision is exactly what is required. At Level 2 a revision submitted early is not permitted at all.

If the institution will not share its report, its panel constitution or the rules it is applying, and it is a public authority, that information can be sought under the Right to Information Act. The AI RTI Drafter will prepare the application, and The RTI Playbook explains how to phrase it so you get the record rather than a summary.

• Accepting a raw percentage that was generated without the required exclusions.
• Treating the supervisor's rule of thumb as the rule. The bands are in a notified regulation, not in departmental custom.
• Rewriting before the level is settled, which can look like an admission and, at Level 2, is not even allowed.
• Missing that the abstract and conclusions are held to a stricter standard than the literature review.
• Not asking for the hearing the regulation guarantees.

It falls in Level 1, which is above 10 and up to 40 percent. The prescribed consequence for a thesis is that you submit a revised script within a stipulated period not exceeding six months. Your registration is not cancelled and you are not debarred. Before accepting the figure, confirm the report excluded quoted matter, references, the bibliography, the table of contents, the preface and acknowledgements.

Up to 10 percent is Level 0, described as minor similarities with no penalty. That is the only band the regulation treats as carrying no consequence. It is a ceiling for penalties, not a target to aim at, and the parts of your work expected to carry no similarity at all are the abstract, summary, hypothesis, observations, results, conclusions and recommendations.

It should not. The regulation says the similarity check shall exclude all references, the bibliography, the table of contents, the preface and the acknowledgements, as well as properly attributed quotations and generic terms, laws, standard symbols and standard equations. A report that counted your reference list has not been generated the way the regulation describes, and that is a fair point to raise in writing.

The regulation deals with this directly. If plagiarism is proved on a date later than the award of the degree or credit, the degree or credit is put in abeyance for a period recommended by the Institutional Academic Integrity Panel and approved by the head of the institution. Note the language is abeyance for a recommended period, decided through the panel process rather than automatically.

You are punished at one level higher than the level you previously committed. If the highest level has already been reached, the punishment for that level applies again. For faculty publications a repeated Level 3 offence opens the door to disciplinary action including suspension or termination under the institution's service rules.

The regulation says penalties apply when plagiarism has been established without doubt, when all avenues of appeal have been exhausted, and when the individual has been given enough opportunity to defend themselves in a fair and transparent manner. If you have not been heard, or your appeal has not been decided, that sequence has not been followed and you should say so in writing.

No. For a thesis the student ladder runs from no penalty, to a revised script within six months, to a one year bar on resubmission, to cancellation of registration. For publications the consequences are withdrawal of the manuscript, loss of one or two annual increments, and a two or three year bar on supervising new research scholars, depending on the level.

• University Grants Commission, Promotion of Academic Integrity and Prevention of Plagiarism in Higher Educational Institutions Regulations, 2018, as published in the Gazette of India
• University Grants Commission

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