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Computer Science Engineering (B.Tech / B.E.) — Step-by-Step Roadmap

Your journey, phase by phase

  1. Phase 1 · Class 11–12 Class 11–12: subjects and eligibility Take Physics, Chemistry and Maths (PCM); strong Maths decides most of your options.
    • Computer Science Engineering needs Class 12 with Physics, Chemistry and Maths, plus English in most boards.
    • For JEE Main and NITs/IIITs/GFTIs, Class 12 normally needs 75% (65% for SC/ST) or a place within the board’s top 20 percentile; IITs ask for the same through JEE Advanced eligibility.
    • Choose PCM in Class 11 and add Computer Science or Informatics Practices if your school offers it, since coding helps in every branch.
    • Start NCERT-based preparation in Class 11 and add problem-solving practice from Class 12.
    Subjects
    PCM (+ English)
    Class 12 marks
    75% for NIT/IIT route (65% SC/ST)
    Also helps
    Computer Science / IP
  2. Phase 2 · Class 12 year Entrance exams and counselling JEE Main, JEE Advanced and state CETs lead to counselling-based seat allotment.
    • JEE Main is held by the NTA in two sessions (January and April); your best score counts, and the paper tests Physics, Chemistry and Maths.
    • The top-ranked JEE Main candidates can appear for JEE Advanced for IIT admission (held in May–June, with a limit of two attempts in consecutive years).
    • JoSAA runs the joint counselling for IITs, NITs, IIITs and GFTIs in several rounds with choice filling and seat acceptance.
    • State CETs (such as MHT-CET, KCET, WBJEE, EAPCET, KEAM and GUJCET with state counselling) and private exams like BITSAT and VITEEE give other routes.
    • Apply to several routes and rank colleges by branch quality, placements and faculty, not only by brand name.
    Exams
    JEE Main, JEE Advanced, state CETs
    Counselling
    JoSAA and state counselling
    Calendar
    Jan–Apr exams, Jun–Aug counselling
    • Tip: Keep a college-and-branch shortlist ready before JoSAA choice filling opens.
  3. Phase 3 · Year 1–4 Eight semesters of study Programming and maths first, then core CS and electives.
    • Year 1: Programming in C/Python, Engineering Maths, Physics, Digital Logic and Communication skills.
    • Year 2: Data Structures and Algorithms, Object-Oriented Programming, Discrete Maths, Computer Organisation, Operating Systems and DBMS.
    • Year 3: Computer Networks, Software Engineering, Theory of Computation, Compiler Design, Web and Machine Learning electives.
    • Year 4: Specialised electives (AI/ML, Cyber Security, Cloud, Data Science) and a final-year project.
    Semesters
    8
    Core
    DSA, OS, DBMS, Networks
  4. Phase 4 · Year 2–4 Internships, projects and coding profile Build proof of skill beyond marks.
    • Solve DSA problems regularly on platforms such as LeetCode or Codeforces; most campus tests ask for them.
    • Build two or three real projects (web app, mobile app or ML model) and put them on GitHub.
    • Do summer internships after Year 2 and Year 3, or remote internships with start-ups.
    • Learn Git, SQL, one cloud platform and basics of system design.
    Common tools
    Git, SQL, cloud, Linux
  5. Phase 5 · Year 4 Placements, GATE or higher study Choose between campus jobs, GATE and M.Tech, or a master’s abroad.
    • Campus placements usually run in the 7th semester with an online test, technical interviews and HR rounds.
    • GATE (Computer Science and Information Technology) leads to M.Tech at IITs/NITs and to PSU recruitment.
    • Study abroad through GRE-based MS admissions.
    • You can also join start-ups, product companies, IT services or prepare for government technical jobs.
    GATE paper
    CS & IT
    Typical roles
    Software engineer, SDE, data engineer

Verify on the official source

Exam dates, fees, paper patterns and eligibility rules are revised by the regulator from time to time. Treat this roadmap as your map, and confirm the current rules on the official site before you register or pay any fee.

JEE Main (NTA)JoSAA counsellingAICTEGATE Full CSE career guide