The eLitmus pH test is a two-hour aptitude test for Indian freshers, with three sections of 20 questions each, scored out of 600. Its negative marking is unusual: it applies only once more than a quarter of the questions you attempt are wrong, which changes how much you should guess. This page covers what the eLitmus pH test is, its format and timings, how it is scored, the rules to know before you start, how to prepare and a practice plan.
What the eLitmus pH test is
pH stands for Hiring Potential. eLitmus says the test has no fixed syllabus and measures broad abilities such as simplification, relational thinking, extrapolation and interpolation, perseverance, an eye for detail and resistance to repetitive fatigue, with the formulae you need given on the instructions page. Companies then hire through eLitmus: its system ranks candidates separately for each job, so one company may weight algorithmic thinking for research roles and another attention to detail for services or testing roles.
Results of the online test take up to 18 to 20 working days, so book well before the hiring drives you want to apply to.
Format and timings
| Part | What it involves | Time and questions |
|---|---|---|
| Quantitative | Arithmetic, algebra and data problems | 20 questions, up to 200 marks |
| Problem solving (analytical reasoning) | Multi-step puzzles and reasoning; prep sites commonly mention cryptarithmetic-style puzzles | 20 questions, up to 200 marks |
| Verbal | Reading, grammar and usage | 20 questions, up to 200 marks |
| Online test session | Taken from home in a secure browser, then rough work uploaded | eLitmus's online FAQ refers to a 125-minute session |
Total: two hours for 60 questions and 600 marks, according to eLitmus; it says the structure can change as the test is refined.
How it is scored
- Each section gets an absolute score and a percentile; your score is fixed, but your percentile can shift.
- Percentiles are calculated against test takers from the previous two years, so they change after every test.
- eLitmus describes a differential negative marking scheme that applies only if more than 25 percent of your attempted questions are wrong; prep sites describe it as 10 marks per correct answer minus 5 for each wrong answer beyond that quarter.
- eLitmus says that for every three candidates who attend a company's selection process through it, one gets an offer.
Rules to know before you start
- Scores are valid for two years.
- You can take the test any number of times and your best score is used, but eLitmus says many companies prefer candidates with no more than three attempts.
- The online test needs the PACExam Browser, which runs only on Windows, not macOS or Linux. A demo test email arrives at least two days before; take the demo.
- Your government photo ID is captured at the start, and you must upload your rough work afterwards; without it your score is marked invalid.
- A missed slot counts as absent with no second chance. Remote scores can be checked with an in-person test, and a large mismatch can lead to a ban of at least six months.
How to prepare
- Track your accuracy in practice: keep wrong answers well under a quarter of your attempts before you start guessing.
- Guess only when you can rule out options, since past the threshold each wrong answer costs marks.
- Practice long multi-step puzzles for problem solving, because they reward perseverance more than speed.
- Do timed full-length mocks of 60 questions in two hours.
- Write rough work neatly on paper you can photograph, because you will upload it.
A practice plan
- Week 1: aptitude daily (quantitative, reasoning and verbal) with section timers.
- Week 2: coding problems of easy to medium difficulty in one language, plus pseudocode or technical questions if the test has them.
- Week 3: full mock tests under exam conditions and spoken-English practice if there is a communication round.
Related guides: what an online assessment is, the new grad online assessment guide, the TCS NQT pattern.
On the day, and the mistakes to avoid
- Keep your ID, admit card or invitation and academic documents ready, as the drive requires.
- For centre-based tests, arrive early and follow the centre's rules on phones and belongings.
- For online tests, check your camera, microphone and connection, and use a quiet room.
- Note each section's timer: sections are often fixed in order and you cannot go back.
- Attempt every question where there is no negative marking.
- In coding rounds, submit code that compiles and passes some cases rather than nothing.
Mistakes that cost candidates:
- Neglecting the English or communication section, which is often an elimination round.
- Overspending time in one aptitude section when each has its own timer.
- Practicing only coding and skipping pseudocode and computer fundamentals.
- Registering through unofficial links; use the company's careers site or your placement cell.
- Skipping full mock tests, so the real section timers come as a surprise.
What happens after the eLitmus pH test
Shortlisted candidates usually move on to technical and HR interviews, then an offer letter and onboarding. Prepare to explain your projects, basic programming concepts and why you want to join, and keep practicing spoken English for the interviews. For the next stage, see the new grad online assessment guide.
Where CoPilot Interview fits
Online assessments are tests you take on your own: outside help is not allowed, and proctoring settings can flag other apps, tab switches or a second voice. Practice beforehand instead. CoPilot Interview is an AI interview assistant; its free AI mock interview prepares you for the interviews that follow the assessment, with questions built from your résumé and the job description and each spoken answer scored out of ten. The free plan gives 15 minutes a day of live help in sessions of up to 15 minutes, with AI mock interviews included. Read the invitation carefully and follow your employer's rules.
Disclosure: CoPilot Interview is our product, so weigh what we say about it accordingly.
Frequently asked questions
Is there negative marking in eLitmus?
Yes, but only if more than 25 percent of the questions you attempt are wrong. Below that, wrong answers carry no penalty, and blank questions never do.
How long is an eLitmus score valid?
Two years. The score stays fixed, but the percentile can change as the two-year comparison group changes.
How many times can I take the pH test?
As many as you like, and your best score counts, but eLitmus recommends no more than three attempts because many companies prefer that.
Can I take the online eLitmus test on a Mac?
No. The required secure browser runs only on Windows, according to eLitmus.
Can I use AI tools during the eLitmus pH test?
No, unless the instructions explicitly allow it. Assessments are meant to be taken on your own, and proctoring settings can flag other apps, tab switches or pasted code. Use AI tools to practice beforehand, and follow your employer's rules.
Practice this interview before the real one
The AI mock interview builds questions from your resume and the job description, reads them aloud and scores each spoken answer out of 10. Included on the free plan.
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