IITM BS Electronic Systems vs Aeronautics and Space Technology
Editorial Team
Electronic Systems (ES) and Aeronautics and Space Technology (AE) look alike at the start. Both need Class 12 with Physics and Maths, both use the same four qualifier courses, and both are 142 credit non-campus BS degrees with labs at IIT Madras. They split after the first few courses. ES is about circuits, digital and embedded systems. AE is about aerodynamics, structures, flight dynamics and propulsion. AE costs a little more, and only ES students have an official route into the other programme.
ES and AE side by side
| Point | Electronic Systems | Aeronautics and Space Technology |
|---|---|---|
| Class 12 | Physics and Maths | Physics and Maths |
| Qualifier courses | English I, Math for Electronics I, ESTC, Introduction to C Programming | The same four |
| Credits by level | 43, 43 and 56 | 32, 52 and 58 |
| Full fee before waivers | Rs 5,80,000 | Rs 6,12,000 |
| Study time | About 10 hours per course a week | About 15 hours per course a week |
| Labs | From the Foundation level | From the Diploma level |
| Exits | Foundation Certificate, Diploma in Electronic Systems, BS | Foundation Certificate, Diploma in Aeronautics, BS |
| On-campus option | None listed | Degree level, for a select number |
ESTC is Electronic Systems Thinking and Circuits. The ES fee is for students joining from January 2026. For the basics of the newer programme, read what we know about AE.
One small conflict: the ES homepage gives the ES levels as 44, 42 and 56 credits, while the ES academics page gives 43, 43 and 56. The total is 142 either way. Go by the academics page and confirm with support.
What the two share
The AE Foundation reuses several ES courses: English I and II, Math for Electronics I, Introduction to C Programming, and Electronic Systems Thinking and Circuits. Signals and Systems appears in both Diplomas. AE's Foundation also has Math for Electronics II, which ES places at the degree level.
This overlap is useful if you are unsure. Your first term looks much the same in either programme.
Where they split
| Level | ES examples | AE examples |
|---|---|---|
| Foundation | Digital Systems, Electrical and Electronic Circuits, Embedded C Programming, Linux | Introduction to Aerospace Systems, Engineering Mechanics |
| Diploma | Analog Electronic Systems, Digital System Design, Digital Signal Processing, Sensors, Computer Organisation | Thermodynamics, Fluid Mechanics, Aerodynamics, Gas Dynamics, Flight Dynamics I, Applied CFD, FEA |
| BS level | Embedded Linux and FPGAs, Electronic Product Design, Control Engineering, electives such as IoT and Digital IC Design | Gas Turbine Propulsion, Rocket Propulsion, Aircraft Structures, Vibrations and Aero-Elasticity, a UAV design project |
Labs and campus travel
ES has 5 labs in the Foundation alone, then 3 in the Diploma and 1 at the BS level. Some lab work is done at home with a kit. You must still travel to IIT Madras to demonstrate the experiments. The ES FAQ says you arrange your own stay. See ES campus visits.
AE lists no Foundation labs. Its Diploma has an Aerodynamics Lab and a Flight Dynamics and Simulation Lab, and the BS level has a Structures Lab. The launch press release says the labs include wind tunnels and mechanical testing. The AE FAQ says it will try to arrange rooms during labs, at the students' cost.
AE also offers something ES does not. After the Diploma, a select number of students can take all degree level courses on campus, based on tests and interviews. See the AE on-campus option.
Fees level by level
| Level | ES | AE |
|---|---|---|
| Foundation | Rs 82,000 | Rs 60,000 |
| Diploma | Rs 1,62,000 | Rs 2,04,000 |
| BS level | Rs 3,36,000 | Rs 3,48,000 |
| Total | Rs 5,80,000 | Rs 6,12,000 |
AE is cheaper at the Foundation and dearer later. Both offer the same 50% and 75% fee waivers by category and family income, and neither applies them to students based outside India. For why ES costs more than DS, see the ES fee explainer.
Getting to the BS level
AE sets a clear gate. You must finish all Foundation and Diploma courses and labs within 15 terms, with an overall CGPA of 6.0 or more and a project CGPA of 7.0 or more. The ES academics page lists no CGPA condition for its BS level. It says you move on once all Foundation and Diploma courses and labs are done.
Careers, as the official pages describe them
The ES homepage names automotive, consumer electronics, space, mobile, medical electronics and defence. The ES FAQ lists roles like Electronic System Designer and Embedded System Developer. The AE homepage points to aviation, defence and space, and to unmanned aerial systems. The AE FAQ's job answer repeats the ES list of electronics roles word for word, so do not read it as AE specific.
Neither programme has published placement data. More in ES career options.
The one-way switch
The AE FAQ says ES students can move to AE from the ES Foundation level, with criteria given once they enter the Foundation. There is no published route from AE to ES. So if you cannot decide, starting in ES keeps one official door open for a while. Starting in AE does not. See switching from ES to AE.
Common questions
Can I do ES and AE together?
No. The AE FAQ says you cannot enrol in two BS programmes at the same time, because exam dates and deadlines are common.
I study EECS at another institute but like aerospace. Can I add AE?
Yes, if you meet the eligibility. The AE FAQ says you can do this BS along with another degree programme. Plan for the in-person exams and the lab trips to Chennai.
Which one has more coding?
ES has more. It includes C, Linux, Embedded C and Python courses, and the first three have labs. AE has Introduction to C Programming and Machine Learning Foundations, plus analysis tools like CFD and FEA.
Is there a BSc exit in either?
No. Both list only a Foundation Certificate, a Diploma and the BS. The ES FAQ says ES needs four years of courses, so it has no 3-year exit.
Official sources
- IIT Madras BS Electronic Systems official websiteIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Electronic Systems academics pageIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Electronic Systems FAQIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Aeronautics and Space Technology official websiteIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Aeronautics and Space Technology academics pageIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Aeronautics and Space Technology admissions pageIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras BS Aeronautics and Space Technology FAQIIT Madras · study.iitm.ac.in (opens in a new tab)
- IIT Madras press release: launch of the BS in Aeronautics and Space TechnologyIIT Madras · iitm.ac.in (opens in a new tab)