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Research Guide

119 PhD Research Topic Ideas

A starting list for scholars choosing a thesis topic — grouped by field. Use one as-is, or narrow it to your region, population or dataset.

How to choose your topic

  1. Pick a field you can sustain interest in for 3–5 years.
  2. Read recent reviews (last 3 years) to find what is still unanswered — the research gap.
  3. Check that data, equipment or field access is realistic for you.
  4. Narrow it: add a place, population, material or method.
  5. Discuss it with your guide before writing the synopsis.

Engineering

  1. Machine-learning-based fault detection in power distribution grids
  2. Self-healing concrete using bacterial additives
  3. Energy harvesting from vibration in smart infrastructure
  4. Thermal management of lithium-ion battery packs in electric vehicles
  5. Digital twins for predictive maintenance in manufacturing
  6. Low-cost water purification using nanostructured membranes
  7. Optimising solar PV placement on rural microgrids
  8. Additive manufacturing of lightweight aerospace lattice parts
  9. Seismic resilience of low-rise masonry buildings
  10. Hydrogen storage materials for clean transport
  11. Edge computing for real-time traffic signal control
  12. Recycled plastics as partial aggregate in road construction
  13. Drone-based crop health monitoring with multispectral imaging
  14. Corrosion protection of offshore steel structures
  15. 5G antenna design for compact IoT devices
  16. Waste heat recovery in small and medium industries
  17. Soft robotics for minimally invasive surgery

Life Sciences & Biotechnology

  1. Gut microbiome changes in type 2 diabetes
  2. CRISPR-based screening for antibiotic resistance genes
  3. Plant growth-promoting bacteria for drought tolerance
  4. Biomarkers for early detection of oral cancer
  5. Microplastic accumulation in freshwater fish
  6. Probiotic strains from traditional fermented foods
  7. Genetic diversity of indigenous crop varieties
  8. Biofilm formation and control in medical devices
  9. Mosquito vector competence under changing climate
  10. Phytoremediation of heavy-metal contaminated soil
  11. Stem-cell scaffolds for cartilage repair
  12. Air pollution exposure and childhood asthma
  13. Antimicrobial peptides from marine organisms
  14. Epigenetic effects of maternal nutrition
  15. Biodegradation of pesticides by soil fungi
  16. Single-cell sequencing of tumour microenvironments
  17. Zoonotic disease surveillance at the human-animal interface

Pharmacy, Drug Discovery & Vaccines

  1. Molecular docking of natural compounds against cancer targets
  2. In-silico design of multi-epitope vaccines for emerging viruses
  3. Nanoparticle drug delivery across the blood-brain barrier
  4. Repurposing approved drugs for neglected tropical diseases
  5. QSAR modelling of anti-tubercular compounds
  6. Herbal formulations for wound healing: standardisation and efficacy
  7. Pharmacovigilance of antidiabetic drugs in outpatient settings
  8. Machine learning for ADMET property prediction
  9. Sustained-release oral formulations for hypertension
  10. Antimicrobial stewardship in tertiary hospitals
  11. Molecular dynamics of protein-ligand binding stability
  12. Bioavailability enhancement of poorly soluble drugs
  13. mRNA vaccine stability at non-frozen temperatures
  14. Medication adherence among elderly patients
  15. Phytochemical screening of medicinal plants for antioxidant activity
  16. Peptide-based inhibitors for viral proteases
  17. Green synthesis of active pharmaceutical ingredients

Chemistry & Green Chemistry

  1. Plant-extract mediated synthesis of metal nanoparticles
  2. Solvent-free organic reactions using ball milling
  3. Photocatalytic degradation of textile dyes
  4. Ionic liquids as recyclable reaction media
  5. Biodegradable polymers from agricultural waste
  6. Carbon dioxide capture using metal-organic frameworks
  7. Electrochemical sensors for heavy metals in water
  8. Catalytic conversion of biomass to biofuels
  9. Deep eutectic solvents for natural product extraction
  10. Corrosion inhibitors from plant extracts
  11. Microwave-assisted synthesis of heterocycles
  12. Life-cycle assessment of chemical manufacturing processes
  13. Water-based reactions replacing toxic solvents
  14. Recovery of rare-earth elements from e-waste
  15. Computational study of reaction mechanisms with DFT
  16. Adsorbents from waste materials for dye removal
  17. Green analytical methods for pharmaceutical quality control

Computer Science & Data

  1. Explainable AI for medical image diagnosis
  2. Detecting AI-generated text in academic writing
  3. Federated learning for privacy-preserving healthcare data
  4. Deep learning for crop disease detection from leaf images
  5. Blockchain for transparent academic credential verification
  6. Low-resource language models for Indian languages
  7. Intrusion detection in IoT networks
  8. Recommendation systems for personalised learning
  9. Fake news detection on regional social media
  10. Energy-efficient scheduling in cloud data centres
  11. Graph neural networks for drug-target interaction
  12. Bias and fairness in automated hiring tools
  13. Sign language recognition with computer vision
  14. Time-series forecasting of air quality
  15. Secure authentication for mobile banking apps
  16. Large language models for scientific literature review
  17. Quantum-safe cryptography for embedded systems

Social Issues & Management

  1. Impact of digital payments on small rural businesses
  2. Women's participation in STEM higher education
  3. Mental health of doctoral students and early-career researchers
  4. Climate migration and its effect on urban employment
  5. Microfinance and women's empowerment
  6. Online learning outcomes after the pandemic
  7. Gig economy workers and social security
  8. Corporate social responsibility and community health
  9. Youth unemployment and skill-development programmes
  10. Access to healthcare in tribal regions
  11. Consumer trust in e-commerce reviews
  12. Child nutrition schemes and school attendance
  13. Remote work and employee wellbeing
  14. Green marketing and purchase intention
  15. Public awareness of antibiotic misuse
  16. Social media use and adolescent self-esteem
  17. Financial literacy among university students

Humanities & Education

  1. Representation of women in post-colonial Indian literature
  2. Preserving endangered oral traditions through digital archives
  3. Mother-tongue instruction and early literacy
  4. Ethics of AI tools in academic writing
  5. Translation challenges for scientific texts in regional languages
  6. Teacher training for inclusive classrooms
  7. Heritage tourism and local identity
  8. Plagiarism awareness among postgraduate students
  9. Folk art revival and livelihood
  10. Assessment reform in higher education
  11. Philosophy of science and research integrity
  12. Ecocriticism in contemporary fiction
  13. Open-access publishing and research visibility in developing countries
  14. Gamification in language learning
  15. Role of libraries in digital research skills
  16. Media portrayal of scientific controversies
  17. Peer review practices in emerging-market journals

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