Live Session with Lokesh

Look, the key thing is — don't go too deep into any one subject. The paper has 100 questions across many topics, so you need to cover everything at least at a basic level.

• First thing — solve all BITS HD PYQs. A lot of concepts keep repeating year after year.
• GATE PYQs are your best friend here. Solve 1-mark GATE PYQs and the 2-mark theoretical ones. BITS HD difficulty is somewhere between GATE and CMI/ISI level.
• In the last 7 days, just revise. Do mock tests, go through your formula sheets. Don't start anything new.
• Marking is +3/-1, so if you can eliminate 2 options, go for it. If you have no clue, just skip.
• A lot of questions are purely theoretical — they just test if you know the concept or not. So keep revising definitions and properties.

Complex Variables and Probability — these two come every single year. You'll get 4-6 questions just from these two topics out of 15. So start here.

• My priority order was: Complex Variables → Probability → Linear Algebra → Calculus → DEs → Numerical Methods.
• For Complex Variables — Cauchy's theorem, residues, Laurent series. Just practice contour integration problems.
• For Probability — Bayes' theorem, Poisson, Binomial, Normal. And here's a tip: solve GATE PYQs from ALL branches, not just CS. The math is the same.
• Linear Algebra is very formula-heavy. Keep a formula sheet and revise it regularly.
• Numerical Methods is the easiest to score — Newton's method, Simpson's rule. It's just plugging into formulas.

→ Full Math Prep Guide

Honestly, most CS students completely ignore this section and then regret it. It's 15 questions — same weightage as Math. And it's actually easier to score here if you just practice a bit.

• Grammar — subject-verb agreement, prepositions, articles, tenses. Just 15-20 minutes daily is enough.
• Vocabulary — synonyms, antonyms, one-word substitutions. The usual stuff.
• Reading Comprehension — pro tip: read the questions FIRST, then the passage. Saves time.
• Logical Reasoning — number series, coding-decoding, blood relations. Any MBA prep book works for this.
• Seriously, don't skip this. It's free marks if you prepare.

→ Full English & LR Prep Guide

From past papers, DS, OS, COA, and DBMS have the most questions — 60+ combined. These are your bread and butter.

• Must-do: Data Structures (AVL trees, hashing, traversals), OS (scheduling, paging, deadlocks), COA (pipelining, cache), DBMS (normalization, SQL, transactions, ER diagrams).
• Networks and DBMS also give good returns for the effort you put in.
• Digital Electronics mein focus on K-Maps, MUX/Decoder, Flip-Flops vs Latch — these come every year. Microprocessors (8085/8086) is low priority, just know basics like HLT instruction.
• Discrete Math is underrated — 18 PYQs hain. Combinatorics (P&C), Functions & Relations, and basic Graph Theory are high-frequency.
• TOC & Algorithms — DFA/NFA, pumping lemma, time complexity, sorting. Standard stuff.
• Compilers has lowest weightage but still 2-3 questions. Just know the basics — phases, parsing, type checking.

→ Full CS Prep Guide · → Important Topics Analysis

SS is basically C Programming + OOP + Software Engineering + DBMS. It's more theory-heavy than CS.

• C Programming — pointers, structures, unions, macros, storage classes. Practice output prediction questions, that's what they ask.
• OOP — inheritance, polymorphism, encapsulation, design patterns. Know the definitions well.
• Software Engineering — SDLC models, testing methods, COCOMO, SRS, UML. Lots of memorization here.
• For resources — GATE PYQs for SE + DBMS. For C, "Let Us C" or GeeksforGeeks is enough.
• The questions are mostly "do you know this concept or not" type. So just revise regularly.

→ Full Software Systems Prep Guide

Yes, there's always some surprise. Every year 5-10% questions come from areas you won't expect.

• Digital Electronics mein K-Maps, MUX, Flip-Flops are guaranteed — these are "Must Know". Microprocessors (8085/8086) might appear but it's low priority, don't spend too much time on it.
• AI/ML basics — supervised vs unsupervised, Bayesian networks. 1-2 questions possible.
• XML vs HTML, Virtual Machines — these have appeared before. Just know the definitions.
• Don't panic when you see something unfamiliar. Do what you know first, come back to the weird ones later.

Yeah, cutoffs will definitely go up this year. PGEE cutoffs went up, BITS through GATE also increased. More people are aware of BITS HD now.

• I'd say expect 140-160+ out of 300 to be safe for CS. Last year it was around 120-130.
• Campus-wise: Pilani is highest, then Hyderabad, then Goa. Pilani is usually 15-20 marks more than Goa.
• My advice — aim for 160+ and you're safe for all three campuses.
• Focus on accuracy, not on attempting everything. That -1 for wrong answers adds up fast.
• But look, these are just estimates. Actual cutoff depends on how hard the paper is and how many people apply.

→ See Mock Test Leaderboard

Key dates to remember:

• Application deadline: 25 April 2026 (extended)
• GATE Iteration 1 results: 4 May 2026
• Iteration 1 fee payment deadline: 23 May 2026 (extended, 5:00 PM)
• Test center allotment: 18 May 2026 (live now)
• Hall Ticket download: 21 May 2026
• BITS HD Test: 25-26 May 2026
• Iteration 2 results: 8 June 2026
• Iteration 3 results: 29 June 2026
• Reporting/Orientation: 30-31 July 2026
• Classes begin: 3 August 2026

Source: Official BITS HD Portal ↗

133 marks out of 300.

• This was for the 2025 admission cycle.
• Got BITS Pilani campus (CSE) with this score.
• Note: Cutoffs vary each year based on paper difficulty and number of applicants.

Around 160-170 out of 300.

• GATE And Tech mock tests are slightly harder than the actual BITS HD exam.
• If you're scoring 160+ in mocks, you're in a very good position for the real exam.
• Focus on improving accuracy rather than attempting more questions.

→ Mock Test Leaderboard · → Mock Test Schedule

The exam has multiple tests on the same day:

• Test I (Common for all): 30 questions — 15 Core Mathematics + 15 English & Logical Reasoning. 45 minutes. 90 marks.
• Test II (For M.E. CS): 70 questions — Computer Science subjects. 105 minutes. 210 marks.
• Special Test (For M.E. Software Systems): 50 questions. 60 minutes. 150 marks. This is taken instead of Test II, not in addition to it.
• Total marks for CS: 300 — Test I (30 Qs × 3 = 90) + Test II (70 Qs × 3 = 210).
• Total marks for SS: 240 — Test I (30 Qs × 3 = 90) + Special Test (50 Qs × 3 = 150).
• Marking: +3 correct, -1 wrong, 0 unanswered.
• Mode: Computer Based Test (CBT), single session, English only.
• All tests conducted on the same day at designated centers.

→ Complete Syllabus · → HD vs GATE Comparison

If you've done GATE prep, 10-15 days of focused preparation is sufficient.

• With GATE background: 70% syllabus overlaps. Focus on extras (Discrete Math, English, Numerical Methods).
• Without GATE background: Need 30-45 days minimum. Start with high-weightage subjects.
• Last 7 days plan: Day 1-3: Solve all PYQs. Day 4-5: Mock tests. Day 6-7: Formula revision + weak areas.

→ Question of the Day (Daily Practice)

Absolutely, if you value brand + placements + stipend.

• Stipend: Rs. 13,400/month for all HD students.
• Placements: Same placement cell as B.Tech students. Top companies recruit from BITS.
• Brand value: BITS Pilani is among top 10 engineering institutes in India.
• Flexibility: Can apply through GATE score OR BITS HD test. Two chances.
• Compared to NITs: BITS HD placements are generally better than most NITs for M.Tech.

Time management is everything.

• Test I (45 min, 30 Qs): 1.5 min/question. Do English first (faster), then Math.
• Test II (105 min, 70 Qs): 1.5 min/question. Start with your strongest subject.
• First pass: Attempt all easy/medium questions. Skip hard ones.
• Second pass: Come back to skipped questions. Attempt if you can eliminate 2 options.
• Don't: Spend more than 2 minutes on any single question in first pass.

You can apply for both. CS is more popular but SS has lower cutoff.

Seat Intake (Campus-wise & Branch-wise): (Through GATE Score + BITS HD Exam)

• BITS Pilani (CS + SS): 25 + 35 = 60 seats
• BITS Hyderabad: 40–42 seats
• BITS Goa: 25 seats

• Total Approx Seats: 120–130 seats

Key differences:

• SS eligibility: ANY engineering branch can apply (not just CS/IT). This makes it accessible to non-CS students too.
• CS eligibility: Only CS/IT graduates can apply.
• Placements: Same placement cell for both. Companies don't differentiate between CS and SS at BITS.
• Admission route: Both CS and SS admission is through GATE Score + BITS HD Exam.

Strategy: If you're from CS/IT background, apply for both CS and SS. If you clear CS cutoff at your preferred campus, take CS. SS at Pilani is an excellent backup — same BITS Pilani tag, same placements.