MHT-CET CAP Round 4 option filling for engineering admissions runs through September 1, 2026, covering roughly 23,000 vacant seats, with allotment expected around September 3 and acceptance running September 4-7. The most costly mistake at this stage is filling too few options out of a fear of "wasting" choices — CAP Round 4 allows unlimited choices, and a short list in this specific round meaningfully narrows the chance of landing any seat at all, since it's typically the last centralized round before institute-level vacancy rounds begin.

Key Takeaways

  • CAP Round 4 option filling for MHT-CET engineering admissions runs through September 1, 2026, with seat allotment expected around September 3 and acceptance running September 4-7.
  • Roughly 23,000 seats are vacant heading into this round — a meaningfully larger, more varied pool than earlier rounds, since many candidates have already been allotted and confirmed seats.
  • Filling too few choices is the single most common and costly mistake in this round — unlimited choices are allowed, and a short list directly reduces the chance of any allotment.
  • This is typically the last centralized CAP round before institute-level vacancy rounds begin, which usually offer less favorable options and a more fragmented process.
  • Choices should still be ordered by genuine preference, not just filled indiscriminately — order determines which seat gets allotted first among all the eligible options.

Why Round 4 Behaves Differently From Earlier Rounds

By CAP Round 4, the candidate pool has narrowed considerably — many students from earlier rounds have already accepted seats and exited the process — while the seat pool has actually grown, since students who moved on leave vacancies behind, alongside any newly added seats. This combination means cutoffs in Round 4 are often noticeably more accessible than in Round 1 or 2 for the same college and branch, which is exactly why filling a short, cautious list in this round leaves real opportunity on the table.

The Core Mistake: Filling Too Few Choices

Since CAP rounds allow unlimited choices at no additional cost, there's no genuine downside to filling a long list — every additional realistic choice is simply one more chance at a seat, evaluated only if higher-preference choices aren't allotted. Students who fill only 10-15 choices out of hesitation or a narrow sense of "acceptable" options are the ones most likely to end up with no allotment in this round, forced into the less predictable institute-level vacancy process afterward.

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A Practical Approach to This Round's List

Choice TierHow to Approach It in Round 4
Genuine first-choice colleges/branchesList first, even if the cutoff looked out of reach in earlier rounds
Solid backup colleges/branchesList generously — Round 4's expanded vacancy pool changes the odds here
Acceptable but lower-preference optionsStill worth including — a seat here beats no seat and a fall into vacancy rounds
Options genuinely unacceptable regardless of admissionSkip — no need to fill options that would never actually be accepted

Common Mistakes to Avoid

  • Filling a short list out of a false sense that unlimited choices are "wasteful" — there is no cost to additional realistic choices, only upside.
  • Assuming Round 4 cutoffs mirror Round 1 or 2 and skipping colleges that seemed out of reach earlier — the expanded vacancy pool often makes them newly accessible.
  • Missing the option-filling deadline by underestimating how much research a long, well-ordered list actually takes.
  • Not preparing required documents for seat acceptance in advance, causing avoidable delay once an allotment comes through in the September 4-7 window.

Expert Tips from BuzzyBrains Academy Faculty

Founder Dilip Sah (IIT Kanpur alumnus, JEE AIR 400, 25+ years of mentoring experience) works closely with Pune families through each CAP round, and flags Round 4 specifically as a round students under-prepare for:

  • Students are consistently guided to fill significantly longer choice lists in Round 4 than in earlier rounds, given the meaningfully different vacancy pool.
  • Round 4-specific cutoff patterns from previous years are reviewed with each family so choices are ordered realistically rather than based on outdated Round 1-2 expectations.
  • Small batches (max 12 students) allow mentors to review each student's actual choice list before the deadline, catching an overly short list before it becomes a missed opportunity.