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Thesis Guide25 min read5 December 2025

DNB Thesis: Practical Survival Guide (Problems & Solutions)

Real-world problems and solutions for your thesis journey. Guide selection, sample size calculation, IEC approval, payment issues, modified thesis, plagiarism, and emergency contacts.

The Reality of DNB Thesis

88 hours/week workload. 56% burnout rate. 6-month NBEMS response time. This guide helps you survive the thesis journey with your sanity intact.

The official NBEMS guidelines tell you what to do. This guide tells you how to actually do it—with all the real-world problems, workarounds, and survival strategies that no official document mentions.

Know Your Stakeholders

Before diving into problems, understand who you'll be dealing with:

StakeholderRoleCommon Issues
Thesis GuideMentor, approverUnavailability, transfer, conflicts
IECEthics approvalInfrequent meetings, delays
SRCScientific reviewMethodology objections
HOIAdmin approvalSignature delays
Hospital GRCLevel-1 complaintsUse for guide/workplace issues
NBEMS GRCLevel-2 escalationMeets quarterly, slow

Phase 1Topic Selection

❌ Common Mistakes

  • • Choosing topics where adequate cases won't be available in your hospital
  • • Picking very common topics (NBE has database of all previous thesis)
  • • Experimental studies (avoid unless you have resources)
  • • Controversial topics (creates approval issues)
  • • Copying old thesis (NBE's plagiarism detection will catch it)

✓ What Works

  • Hospital caseload-based topics — Choose cases common in your hospital
  • • Prospective/retrospective studies (easier than experimental)
  • • Search PubMed, Cochrane, Google Scholar for gaps in literature
  • • Ask seniors who passed recently — what worked, what didn't
  • • You CAN choose allied specialty topics (urosurgery, cardiothoracic, etc.)

Where to Search for Topics

  • PubMed — Create free account, search your specialty + "India"
  • Cochrane Library — See what systematic reviews are missing
  • Google Scholar — Quick literature overview
  • Local medical college library — Often has thesis archives
  • Hospital records — What conditions have high admission rates?

Phase 2Guide Selection & Relationship

⚠️ The Hard Truth About Guide Issues

Reports exist of DNB residents being harassed, threatened with stipend withholding, blocked from OTs, and insulted publicly. When raised to DNB coordinators, sometimes even they don't support students.

This is why guide selection is CRITICAL. Once locked in, changing is difficult.

Choosing Your Guide Wisely

  • Prefer guides committed for your entire training period (not retiring/transferring soon)
  • Ask seniors about their experience with potential guides
  • Choose someone who responds to WhatsApp/email within reasonable time
  • Observe how they treat current trainees
  • Academic productivity (publications) is a plus — they understand the process

If Guide Problems Arise

Grievance Redressal Pathway

Level 1Hospital GRC — First approach. Every accredited hospital must have one.
Level 2NBEMS GRC — If hospital GRC doesn't help. Meets quarterly.
ContactCommunication Portal: exam.natboard.edu.in/communication.php

Change of Guide Procedure

  1. Write to NBEMS with reason for change
  2. Get new guide's acceptance letter
  3. HOI must approve the change
  4. Email all documents to thesis@natboard.edu.in

Phase 3Sample Size Calculation

This is where most candidates get stuck. Different study designs need different formulas. One formula cannot be used for all designs.

Finding Help for Sample Size

Contact a trusted biostatistician or a senior person from the PSM (Community Medicine) department.

Reality check: Some people don't help on time — they're overburdened with their own work. Some are just lazy. Don't wait until the last moment hoping one person will help.

Best approach: Talk to your seniors (even from other departments) and find out who actually helps with sample size calculations. Word of mouth from seniors is the most reliable way to find helpful people.

✓ Free Tools for Sample Size

  • OpenEpi — Free online calculator (openepi.com)
  • G*Power — Free download, comprehensive
  • EpiInfo — CDC's free software
  • Hospital biostatistician — Many hospitals have one for free
  • medicalthesistopics.com — Has MD/MS/DNB specific calculator

⚠️ Dropout Rate Calculation Error

Wrong: 500 + (500 × 10%) = 550
Correct: 500 / (1 - 0.10) = 556
This common mistake can make your study underpowered.

Phase 4Ethics Committee (IEC) Approval

❌ Common Problems

  • • IEC meets only monthly/quarterly — major delay source
  • • Hospital lacks NECRBHR-registered IEC
  • • Multiple revision requests from IEC
  • • Median CDSCO registration: 77.5 days (can go up to 919 days!)

Solutions

  • Submit to IEC within 2 weeks of finalizing protocol — Don't wait
  • Know your IEC meeting schedule in advance
  • If hospital lacks registered IEC: Execute MOU with nearby institution having registered IEC, submit MOU copy to NBEMS
  • Register at www.naitik.gov.in (NECRBHR portal)
  • Attend IEC meeting in person if allowed — faster query resolution

IEC Documentation Checklist

Phase 5Protocol Submission to NBEMS

⚠️ Critical: 90-Day Deadline

Protocol must be submitted within 90 days of joining DNB training. Approval takes approximately 6 months after submission.

Why Protocols Get Rejected

Two sections where MOST corrections happen:

  1. 1. Materials & Methods — Vague methodology, missing details
  2. 2. Referencing — Not following Vancouver style strictly

Protocol Resubmission

  • No separate format for rejected protocol resubmission
  • Use same format, add "Thesis Protocol Re-submission with Corrections" on front page
  • Address each assessor comment specifically

⛔ Penal Provisions for Late Protocol

  • 1. Not eligible to appear in DNB Final Theory Exam (first attempt)
  • 2. Cannot submit thesis without Protocol Acknowledgement number

Phase 6Vancouver Referencing — Get It Right

This is the most common rejection reason. NBEMS is strict about Vancouver style.

❌ Common Vancouver Mistakes

  • • Using "et al." in citations (only use in references for >6 authors)
  • • Writing only first author + "et al." (should be first 6 authors)
  • • Alphabetizing reference list (should be in order of citation)
  • • Wrong page abbreviation: 123-129 (should be 123-9)
  • • Missing journal abbreviation (use Medline abbreviations)
  • • Inconsistent formatting across references

✓ Correct Vancouver Format

Journal Article (≤6 authors):

Author AA, Author BB, Author CC. Title of article. J Abbrev. Year;Vol(Issue):Pages.

Journal Article (>6 authors):

First 6 authors, et al. Title. J Abbrev. Year;Vol:Pages.

Page numbers:

123-9 (not 123-129), 126-34, 111-222

Tools to Get It Right

  • Mendeley (free) — Reference manager with Vancouver output
  • Zotero (free) — Alternative reference manager
  • Journal abbreviations: ncbi.nlm.nih.gov/nlmcatalog/journals

Phase 7Data Collection & Thesis Writing

The Burnout Reality

  • • Average resident working hours: 88 hours/week
  • • Burnout rate among Indian residents: 56%
  • • Thesis work often becomes "a formality to complete somehow"
  • • Teaching, seminars, OT duty, ICU calls — thesis is the lowest priority

Surviving Thesis While Working 88 Hours/Week

  • Fixed 2-3 hours weekly for thesis — protect this time ruthlessly
  • • Use early mornings or post-call recovery days for writing
  • Collect data during clinical duties — don't create separate time
  • • Break thesis into monthly milestones
  • • Train a junior/intern to help with data entry (acknowledge them)
  • • Literature review can be done anywhere — use weekends
  • • Use allowed leaves strategically for writing sprints

80-Page Limit Strategy

NBEMS limits thesis to 80 pages maximum (including text, figures, references, annexures, certificates). This is actually a blessing — keeps you focused.

  • Introduction: 2-3 pages
  • Review of Literature: 10-12 pages (don't exceed)
  • Materials & Methods: 5-8 pages
  • Results: 15-20 pages (tables, figures count)
  • Discussion: 8-10 pages
  • Conclusion: 1-2 pages
  • References: ~5-8 pages
  • Annexures + Certificates: remaining pages

Phase 8Payment & Portal Issues

💸 The Payment Nightmare

NBEMS is "increasingly famous for failed transactions and not refunding." Candidates report losing Rs. 10,000+ due to payment failures where money is deducted but transaction fails.

If Payment Fails But Money Deducted

  1. Wait 7 working days for automatic reversal
  2. If not reversed, email thesis@natboard.edu.in with:
    • — Name, Registration Number
    • — Transaction ID, UTR number, Bank reference
    • — Bank statement showing deduction
  3. Use Communication Web Portal (creates ticket with tracking)
  4. Call 011-45593000 with all details ready

💡 Payment Prevention Tips

  • Use debit/credit card over UPI — better reconciliation
  • Screenshot everything — before, during, after payment
  • • Keep UTR, transaction ID, bank reference handy
  • NEVER submit on last day — portal crashes under load
  • • Keep multiple payment options ready

Portal Technical Issues

File Size Limits:

  • • Declaration/undertaking: PDF <1 MB
  • • IEC approval letter: PDF <1 MB
  • • Application form: PDF <3 MB
  • • Thesis file: typically <20-30 MB

Compress PDFs: SmallPDF.com, iLovePDF.com (free)

Phase 9Modified Thesis (If Rejected)

⏰ Critical Deadlines

  • • Modified thesis deadline: 6 weeks from communication
  • • Fee: Rs. 1,800
  • • No inquiries entertained before 4 months after submission

Modified Thesis Requirements

Handling Unclear Assessor Comments

  • Read assessor comments multiple times
  • If truly unclear, write to NBEMS for clarification via Communication Portal
  • Discuss with guide — they may understand what's expected
  • If additional experiments/data needed and impossible in 6 weeks — write to NBEMS explaining situation

Phase 10Plagiarism — Avoid Disaster

⛔ What NBEMS Says

"Issues like Plagiarism, not maintaining the confidentiality of data, or any other distortion of the research process will be viewed seriously."

Safe Plagiarism Limits

  • Target: <15% similarity for medical/scientific thesis
  • Some institutions accept up to 25%, but safer to stay below 15%
  • Standard definitions (e.g., medical terminology) will always flag — this is acceptable
  • If including your own published paper, cite it as "my previously published work"

Free Plagiarism Checkers

  • Grammarly — Has plagiarism checker
  • Quetext — Free tier available
  • SmallSEOTools — Online free checker
  • Run check after literature review, before discussion

Free Tools Summary

PurposeFree Tool
Sample Size CalculationOpenEpi, G*Power, EpiInfo
Statistical AnalysisR, JASP, JAMOVI
Reference ManagementMendeley, Zotero
Plagiarism CheckGrammarly, Quetext, SmallSEOTools
PDF CompressionSmallPDF, iLovePDF
Literature SearchPubMed, Google Scholar, Cochrane
Grammar CheckGrammarly, ProWritingAid
Graphs/DiagramsCanva, BioRender
Backup/StorageGoogle Drive (15GB free)

Emergency Contacts (Keep Handy)

Thesis Email:thesis@natboard.edu.in
Phone:011-45593000 (Ext. 3, then 2)
Communication:exam.natboard.edu.in/communication.php
Grievance:exam.natboard.edu.in/grievances.php
Thesis Portal:natboard.edu.in/thesisonline/index.php
Postal:Executive Director, NBEMS, Medical Enclave, Ansari Nagar, New Delhi-110029

You Will Get Through This

Thousands of DNB trainees have navigated this system before you. The process is frustrating, the timelines are long, and the bureaucracy is real. But with preparation, persistence, and this guide — you'll make it to the other side with your thesis approved and your sanity intact.

Start early. Document everything. Keep pushing. 💪