You have spent four years writing 80,000 words. You have sacrificed your weekends, your sleep, and your sanity. You finally hand your draft to the university librarian for the mandatory software check.
Five minutes later, they hand you a report. Similarity Index: 24%.
Your heart sinks. Under the University Grants Commission (UGC) regulations, the maximum allowable limit for a PhD thesis in India is strictly 10%. Anything higher means your thesis is rejected, your submission is delayed, and you are sent back to your desk to rewrite.
At PhD India, we receive desperate calls from scholars every day who are trapped in this exact nightmare. Before you panic and start deleting entire chapters, here is what you need to understand about how the software works and how to fix your score legally.
1. Understand the Difference: “Similarity” is not “Plagiarism”
Software like Turnitin, Urkund (Ouriginal), or DrillBit are incredibly stupid. They do not check for “stolen ideas.” They only check for matching text. If you write, “The sun rises in the east,” the software will highlight it in red because someone else on the internet has written that exact sentence before. Do not let a high initial score make you feel like a criminal. You just need to know how to filter the noise.
2. The “Filters” Check (Did the Librarian make a mistake?)
Often, a high score is the result of incorrect software settings. According to UGC guidelines, certain things are legally allowed to be excluded from the similarity check:
- All Quotes: If text is inside quotation marks (” “) and properly cited, it should be excluded.
- The Bibliography/References: This alone can account for 5% to 8% of your score.
- Small Matches: Strings of less than 14 words can usually be filtered out. The Fix: Always politely ask the librarian or your guide to ensure the “Exclude Quotes” and “Exclude Bibliography” filters are turned ON before generating the final report.
3. The Danger of “AI Article Spinners”
When faced with a 20% score and a tight deadline, many scholars turn to free online paraphrasing tools or AI text spinners (like QuillBot). Do not do this. Modern plagiarism checkers now include AI-detection tools. Furthermore, article spinners simply swap words with synonyms, turning your highly technical academic writing into absolute nonsense. Your guide will immediately notice the drop in quality, and you risk facing academic misconduct charges.
4. The Real Solution: Structural Paraphrasing
The only way to permanently and safely reduce your score is through manual, structural paraphrasing. You cannot just change “The quick brown fox” to “The fast brown fox.” You must change the grammar, the sentence structure, and the voice.
- Original (Highlighted): “The rapid increase in inflation has caused severe economic instability in rural sectors.”
- Paraphrased (Safe): “Economic instability across rural demographics is increasingly driven by escalating inflation rates.”
Conclusion
Getting your similarity index below 10% is a frustrating, tedious game of words. But it is a game you have to win if you want your degree.
