- General Aptitude (GA) : Common in all papers
- AE: Aerospace Engineering
- AG: Agricultural Engineering
- AR: Architecture and Planning
- BT: Biotechnology
- CE: Civil Engineering
- CH: Chemical Engineering
- CS: Computer Sc. and Information Technology
- CY: Chemistry
- EC: Electronics and Communication Engg.
- EE: Electrical Engineering
- EY: Ecology and Evolution
- GG: Geology and Geophysics
- IN: Instrumentation Engineering
- MA: Mathematics
- ME: Mechanical Engineering
- MN: Mining Engineering
- MT: Metallurgical Engineering
- PE: Petroleum Engineering
- PH: Physics
- PI: Production and Industrial Engineering
- ST: Statistics
- TF: Textile Engineering and Fibre Science
- TF: Textile Engineering and Fibre Science
- XE -A: Engineering Mathematics
- XE-B: Fluid Mechanics
- XE-C: Materials Science
- XE-D: Solid Mechanics
- XE-E: Thermodynamics
- XE-F: Polymer Science and Engineering
- XE – G: Food Technology
- XE – H: Atmospheric and Oceanic Sciences
- XL – P: Chemistry
- XL-Q: Biochemistry
- XL-R: Botany
- XL – S: Microbiology
- XL – T: Zoology
- XL – U: Food Technology
