Practical courses in KTU are assessed differently from theory courses in both the internal-to-external ratio and the internal mark breakup. Under the 2019 scheme a laboratory course carries a CIE to ESE ratio of 1:1, against 1:2 for theory — meaning your internal marks count for half the course, not a third.
The rules are in R6.3, R6.4 and R6.12 of the B.Tech 2019 Regulation. The 2015 scheme handled practicals entirely differently, with no University-conducted external examination at all.
The CIE to ESE ratio
| Course type | CIE : ESE |
|---|---|
| Theory courses | 1 : 2 |
| Laboratory courses | 1 : 1 |
| Project | CIE only |
| Seminar | CIE only |
This is the single most consequential difference. In a theory course your internal marks are one third of the total; in a lab they are half. Weak internals in a practical course are considerably harder to recover from in the end semester examination.
How the internal marks are split
R6.4 sets the CIE weightage. Drawing and practical courses use a different distribution from theory:
| Course | Attendance | Tests | Assignment / class work / course project |
|---|---|---|---|
| Theory | 20% | 50% | 30% |
| Drawing / Practical | 20% | 40% | 40% |
Ten percentage points move from tests into class work compared with theory. In a lab, the work you produce during sessions carries the same weight as the tests do.
The regulation adds that this applies unless otherwise specified in the curriculum, so a particular lab course’s syllabus can override the split.
Attendance marks work the same way as theory
The 20% attendance component is awarded in full only if you have 90% attendance or above in that subject. Below 90%, the attendance marks are reduced proportionally.
The regulation states this applies to “each theory, practical and drawing” course, so there is no exemption for labs. Duty leave is accounted for when awarding attendance marks.
CIE marks for all subjects must be published at least five days before the University examinations begin.
The 2015 scheme assessed practicals entirely internally
Under the 2015 Regulation, laboratory, practical and workshop courses were marked out of 100 by the college with no University examination:
| Component | Marks | Conducted by |
|---|---|---|
| Practical records / outputs | 60 | Internally by the college |
| Regular class viva | 10 | Internally by the college |
| Final practical exam / written test or quiz | 30 | Internally by the college |
An amendment clarified that for semesters 3 to 8, the 30 marks are awarded by conducting one end semester internal practical examination.
Note how heavily that scheme weighted the record book. Sixty of a hundred marks came from records and outputs — the day-to-day work, not the exam.
All components are mandatory, and incomplete means grade I
This 2015 rule is worth knowing because it still shapes how colleges run labs. Every one of the three assessments is mandatory to earn credits. If you have not completed them, you must finish the work in your free time in consultation with the faculty, and grades are assigned only afterwards.
If a practical course is not completed within the semester, the course is given grade I (Incomplete), and the final grade is awarded only once the outstanding assessments are done — within the next semester, under the Evening scheme wording.
Pass minimum for a practical course
Under R6.12 the pass rule is the same as for theory:
- 40% in the End Semester Examination, and
- 50% in CIE and ESE put together.
Miss either and you get an F grade. With the 1:1 ratio, strong internals help more here than in a theory course — but they cannot rescue you if the ESE itself falls below 40%.
R6.14 also caps how far internals can run ahead: CIE mark percentage shall not exceed the ESE mark percentage by more than 30 points, and CIE is normalised down if it does. Score 40% in a lab ESE and your CIE is capped at 70%, whatever the college awarded.
Credits and grace marks
Practical credits follow R3.5: 1 to 2 hours of practical per week earns 1 credit; 3 to 4 hours earns 2 credits. Under the 2015 scheme it was one credit per laboratory session of 2 or 3 hours per week.
One restriction to be aware of: under R13.5, grace marks are not awarded for practical, lab, viva voce, internal assessment or seminar, even if you fail them. Sports and arts grace marks apply only to theory courses with University-conducted end semester examinations.
What this means in practice
Two habits follow from these rules. Keep the record book current, because under both schemes the day-to-day output carries the largest single share of the practical internal mark. And protect lab attendance specifically — it is 20% of a component that is itself half the course, and there is no grace mark route to recover a failed practical.
Source: APJAKTU Academic Manual V3 (2022), B.Tech 2019 Regulation R3.5, R6.3, R6.4, R6.12, R6.14 and R13.5; B.Tech 2015 Regulation clause 7(l)(b) and its amendment