Looking for a short, high-impact ISRO summer internship in 2026? The ISRO Inertial Systems Unit (IISU), Thiruvananthapuram offers internship training in unclassified areas, with a minimum duration of 21 days and a maximum of 45 days—ideal for students who want hands-on exposure without committing to long-term project training.
This article covers eligibility, dates, duration, stipend rules, required documents, and the exact application process for the IISU 21–45 day internship (Summer 2026).
ISRO IISU Internship 2026 Overview
The IISU internship is designed for students in engineering and science streams relevant to ISRO/DOS programs. Key points:
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Internship duration: 21 to 45 days
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Access: permitted only in unclassified areas
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Stipend: No stipend / remuneration / financial assistance
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Certificate: ISRO’s internship framework includes certificate issuance on satisfactory completion (as per ISRO internship scheme info).
Who Is Eligible for ISRO IISU Internship 2026?
You can apply if you meet all of these:
1) Citizenship
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Applicant must be an Indian citizen.
2) Eligible courses (IISU)
Internship is offered to students pursuing regular on-campus programs such as:
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BE/BTech, ME/MTech, MSc, Integrated MSc, PhD
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BSc / BS-MS (Physics/Chemistry)
3) Minimum academic score
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Minimum 60% aggregate or CGPA 6.32/10
4) Minimum semester completed (important)
IISU specifies a minimum completion stage before applying:
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BE/BTech/BSc/Integrated MSc/BS-MS: after 4th semester
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ME/MTech/MSc: after 1st semester
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PhD: coursework completed
5) One internship per degree
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You’re allowed only one internship per degree at IISU.
IISU Internship Duration + Key Dates (2026)
IISU runs internships in two main blocks:
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May–July (Summer block): Apply by 15 March
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October–December: Apply by 15 August
Tip: Seats are limited and IISU can accept/reject applications based on facility constraints—apply early and keep alternatives ready.
Stipend for ISRO Internship 2026 (IISU)
No stipend is provided during the internship period at IISU/ISRO.
ISRO also clearly notes that interns/project trainees are not eligible for financial assistance, and accommodation is generally not provided (learners may get paid/chargeable options only if a centre extends it subject to availability).
Benefits of the IISU Internship
Even without a stipend, IISU internships are valuable because you get:
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Exposure to real systems and processes inside ISRO (in unclassified areas)
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Strong resume value for:
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higher studies (MS/MTech/PhD)
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core engineering roles (ECE/EEE/Mechanical/CS systems)
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research internships and technical project profiles
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Completion recognition through ISRO’s internship framework (certificate on satisfactory completion).
Documents Required (As Per IISU Guidelines)
Prepare these before you apply:
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IISU Internship application form (filled completely)
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Declaration signed by the student + Principal/HOD approval
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Detailed biodata (education, skills, projects/internships, area of interest, work exp if any)
At the time of joining (if selected), you must produce:
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College ID
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One valid Govt photo ID (Aadhaar / Driving License / Voter ID / Passport) with a copy
Incomplete forms can be rejected—fill every section carefully.
How to Apply for ISRO IISU Internship 2026 (Step-by-Step)
Unlike some centres that use separate portals, IISU accepts applications via post and/or email (scanned copy).
Step 1: Download and fill the IISU internship form
Use the official IISU internship application form (from VSSC/IISU student resources).
Step 2: Get HOD/Principal approval + seal
Your form must be approved by your Principal/HOD.
Step 3: Attach biodata
Add a detailed biodata covering skills + projects + interests.
Step 4: Submit before the due date
Send the application by post to:
Group Head, PPEG/MISA, ISRO Inertial Systems Unit (IISU), Vattiyoorkavu P.O, Opposite CPT, Thiruvananthapuram – 695013
OR email scanned copies to: iisu_online_appln@vssc.gov.in
Step 5: Wait for communication
Acceptance/rejection is communicated to the HOD/Principal.
Selection Tips (Practical)
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Keep your biodata project-first: list 2–4 relevant projects with tools/skills.
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Match your “area of interest” to ISRO-relevant domains (controls, sensors, embedded, software, data, mechanical systems, etc.).
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Apply well before 15 March (summer) because late applications can be rejected if received after the due date.
FAQs
What is the last date for ISRO IISU summer internship 2026?
For the May–July block, IISU requires applications to be received by 15 March.
Does IISU/ISRO provide stipend in 2026 internship?
No. IISU/ISRO internships are non-stipendiary.
What is the internship duration at IISU?
Minimum 21 days, maximum 45 days.
Can 2nd-year students apply?
If you’ve completed the minimum required semester (e.g., 4th semester for many UG tracks) and meet the marks criteria, you can apply.
