Run the in-centre full-length on OMR and the weekly on a computer. For most Indian coaching institutes that split is the right answer, and it is not a fudge - the two formats rehearse different things. An OMR sheet rehearses the hall: a long sit, an invigilator in the aisle, a bubble filled in the right row under pressure. A computer-based test rehearses the screen the student will actually face if their target exam is delivered on one. Read the current bulletin of the exam your batch is sitting and write down its delivery mode. That line decides the format of your mock, not your preference.
This article is about choosing the format. If you have chosen the screen and the paper exists only as a PDF, how a question paper becomes a computer-based test covers the conversion. If the question is how close a screen mock has to get before it earns the word mock, read what makes a mock test realistic.
Why OMR Still Deserves Its Place
Institutes still running OMR are not behind. They are running the one format that needs nothing from anybody: no device per student, no bandwidth, no lab to book, no browser that picks the morning of the paper to update itself. A power cut does not end the exam. The whole batch sits at the same hour, so nobody sees the questions early and the comparison between students is honest. The invigilator can see the room. And where the target exam is itself conducted on paper, bubbling is not a quaint ritual - it is the interface, and it is examinable. Wrong row, wrong mark.
There is a quieter reason too. An OMR day is an event: a fixed hour, a room, an invigilator. A link dropped into a WhatsApp group late on a weeknight is not an event, and nothing about it obliges a student to treat it like one.
What a Bubble Sheet Cannot Rehearse
On a computer-based paper, part of the score is decided by how the student moves through the screen. There is no booklet spread across the desk to scan at a glance - there is one question at a time and a palette, and the palette is where the strategy lives. MockSetu's simulator colours every question in four states: Attempted, Marked for Review, Viewed and Untouched. Reading that grid fast, and deciding from it what to return to with the clock running down, is a learned habit. Learning it on exam day costs marks that have nothing to do with syllabus.
Three more screen behaviours have no OMR equivalent. The clock does not wait: when it runs out, whatever it was timing - the whole paper, or just that section on a sectional clock - is submitted automatically, mid-question, with no last moments to transfer anything. Section rules are enforced rather than announced; in locked navigation a submitted section stays closed and the student cannot go back in. And a dropped connection becomes possible at all. On MockSetu a student returning to the same device within five minutes resumes the same sitting on the question they left, while a longer absence files what they had as a completed attempt.
An OMR sheet rehearses the hall. A computer-based mock rehearses the screen. If the exam is on a screen, only one of those two is practice.
Scanning, Re-marking and the Gap Before the Score
The honest difference between the formats is not pedagogy. It is what happens after the bell. An OMR batch produces a stack of paper somebody has to collect, count, scan or hand-mark, adjudicate for half-filled bubbles and double marks, and transcribe into whatever sheet you publish from. Each of those steps is somebody's evening, and in a small centre that somebody is the person who should be preparing Monday's class. If the key turns out wrong on a question, the whole stack is re-marked.
A computer-based paper closes that gap to nothing. Marks are worked out the moment the paper is submitted and written onto the attempt, and the student can open a question-by-question review straight away. The caveat is the mirror image of OMR's: nothing re-scores a completed attempt. Correcting a wrong answer key changes what the next student scores, never what the ones who already sat it scored. A bad key on a published paper is only ever half-fixable, which is the whole argument for checking it before the link goes out.
The Split Most Institutes Actually Want
Nobody has to choose once and for all. The arrangement that works is the full-length on OMR in the centre, the weekly on screen, and the same rules behind both.
- Keep the monthly or fortnightly full-length on OMR in the centre. That is the sitting where stamina, hall discipline and honest comparison matter most.
- Put the weekly chapter test on screen, even if students sit it at home. Frequency builds the interface habit, and a short paper is cheap to rebuild.
- Use the same marking scheme in both. A student who guesses freely on Sunday's OMR sheet and cautiously on Wednesday's screen test has been taught two conflicting instincts.
- Run the first screen mock inside the centre, on whatever machines you have, with you in the room. Device and sign-in problems surface there instead of in a flood of messages that night.
- Sit every screen paper yourself first. A creator previewing their own exam records nothing - no attempt, no marks, no leaderboard entry - so a dry run cannot pollute the batch's numbers.
Building the Screen Half So It Matches the Paper
A screen test earns its place only if it reproduces the rules of the exam, and that is where it beats an answer sheet outright. A paper whose two halves are marked differently is awkward on OMR and routine on screen. SSC MTS is the standard case: 90 questions for 270 marks across two sessions of 45 minutes each, where Session I is qualifying only and carries no negative marking, while Session II counts towards merit and deducts one mark for a wrong answer. Build it as two sections with their own clocks, set the exam default to the Session II rule, and override Session I to a zero penalty.
Answer types matter as much as marks. The question editor holds four - multiple choice with one correct option, multiple choice with several, numeric, and text - and a numeric answer needs a field the student types the value into, not a row of bubbles. JEE Main Paper 1 is the familiar example: 75 questions, 25 per subject, Section A's 20 MCQs and Section B's 5 numericals all compulsory, plus 4 and minus 1 in both sections, 300 marks in 180 minutes. The old "attempt any 5 of 10" choice in Section B was discontinued from the 2025 cycle, so a mock still offering it drills a habit that no longer exists.
Then put the paper in front of the student before the clock starts. The instructions page carries a table - section by section, number of questions, maximum marks and sectional timing, with a total row - which is the screen equivalent of the front page of a booklet. How to conduct an online exam for students covers the rest of the day.
What the Screen Takes Away
This is where most comparisons oversell, so plainly: a computer-based mock on MockSetu has no proctoring of any kind. No webcam, no AI invigilation, no lockdown browser, no tab-switch detection. Published papers are public - the share link is the paper's own intro page, and anyone holding it may attempt it. There are no attempt limits and no question shuffling. Certainty that the student who topped the mock is the one who will sit the real exam comes from your hall, not the platform. That is a real reason to keep the full-length on OMR.
The reporting is narrower than an institute expects, too. There is no CSV or Excel export and no per-student report card to print and hand over. What you get is the batch view: accuracy and average time on every question, averaged across everyone who attempted it, the wrong option picked most often, and a top-three leaderboard. Enough to choose Monday's discussion questions. Not enough to replace your own register.
One more thing to announce before the first screen test. A visitor can start a published paper without an account, but the attempt is only saved once they sign in with a student account. Get the batch signed in beforehand, or the weekly produces practice and no data.
Running Both Without Doubling the Work
The fear that stops most institutes is maintaining two formats forever. In practice the screen half is built once per paper and then copied. Duplicating an exam carries the marking scheme, the timing groups and the language links with it, so next month's paper starts as this month's structure with new questions - it is best-effort, so open the copy and check it. If the paper exists as a PDF, the bulk route is JSON: run the published extraction prompt from the JSON upload guide through whatever AI you already use and upload what comes back. Figures survive the trip - the extraction records each figure's page and bounding box, and the upload crops them out of your own PDF for approval. Numeric, TITA and match-the-column questions do not; they arrive as placeholders to type in. Server-side import straight from a PDF is off by default and switched on per creator on request, so plan around the prompt-and-upload route.
Everything a creator can build - sections with their own clocks, pooled timing groups, bilingual papers, per-question marking - sits behind one free account that takes no card.
Four Checks Before You Change Anything
- Read the current bulletin of your students' target exam and write down its delivery mode. If it is computer-based, the weekly belongs on a screen whatever you do with the full-length.
- Time your own OMR cycle, from the last sheet collected to the score reaching the student. If the batch complains about results, look at that interval before you blame the format.
- Check that the screen paper's marking scheme, section clocks and navigation rules match the paper you print. A mismatch teaches two instincts and costs marks in the format that counts.
- Before the first screen test, confirm every student can sign in and that the paper opens on a phone as well as a laptop. A device problem found in your centre is an inconvenience; found at home it is the evening.