ISRO Technical Assistant Apply Online 2026: Step-by-Step Application Process

ISRO Technical Assistant Apply Online 2026 is open until 9 November 2026, 23:59 hrs, on the SDSC SHAR website. Applications began on 19 October 2026 at 10:00 hrs for 14 Technical Assistant posts (post codes 07 to 11) under Advertisement No. SDSC SHAR/RMT/03/2026. This guide walks you through the application, the documents and their sizes, the fee and refund, and the mistakes that get applications rejected.

ISRO Apply Online 2026 Notification PDF for Technical Assistant Posts

Candidates can download the official ISRO Recruitment 2026 notification PDF for Technical Assistant and Technician-B posts directly from the link provided below. The PDF contains complete details on eligibility, vacancies, pay scale, selection process, and application procedure, helping applicants to apply online confidently and avoid any mistakes.

Before You Fill the ISRO Technical Assistant Application Form 2026

Check these points first, because a wrong entry can lead to rejection later.

For the full branch-wise vacancy and category split, see our ISRO Technical Assistant Recruitment 2026 notification post.

Keep these ready

• A working email ID and mobile number that belong to you, because all communication goes to the registered email
• Your diploma certificate and mark sheets, scanned to under 1 MB
• A recent colour photograph and a scanned signature in the exact format below
• Your bank account details, which are needed for the fee refund
• Your category certificate (SC / ST / disability) if you want the full refund
• A No Objection Certificate if you are already employed in Central or State Government, a PSU or an autonomous body
• An online payment method, since no other mode of payment is accepted

ISRO Technical Assistant Previous Year Question Papers

ISRO Technician-B Previous Question Papers

ISRO Technical Assistant Apply Online 2026: Step-by-Step Process

Applications are accepted online only. The page is hosted on the SDSC SHAR website from 19 October 2026, 10:00 hrs, to 9 November 2026, 23:59 hrs.

1. Open the official site. Go to shar.gov.in or apps.shar.gov.in and find the recruitment link for Advertisement No. SDSC SHAR/RMT/03/2026. Do not use any other website to apply.
2. Read the notification. Confirm that your diploma branch matches the post code you plan to choose.
3. Register. Enter your email ID and mobile number correctly, since both are compulsory and the registration number and all later messages depend on them.
4. Choose your post code. Select the Technical Assistant post code for your branch, from 07 to 11.
5. Fill in your details. Enter your personal, category, age and diploma details exactly as they appear on your certificates.
6. Select your exam city and posting preference. Pick one of the 18 CBT cities. If you apply for post code 10, give your order of preference between SDSC SHAR Sriharikota and Propellant Complex Rasayani.
7. Enter bank details. Give your account details correctly, because the fee refund is paid there.
8. Upload documents. Add your photograph, signature, diploma documents and any certificate that applies, in the sizes given below.
9. Pay the fee. Pay Rs. 750 online. The application is complete only when the payment is done within the deadline.
10. Submit and save. Note your registration number and download the personalised registration confirmation form, which shows your name, registration number, advertisement number and post code.

A few rules to remember:

• Apply separately for each post code and pay the fee separately for each one. For Technical Assistant, you would normally apply only for the one branch of your diploma.
• If you submit more than one application for the same post code, the last submitted application is final.
• Candidates registered on the National Career Services (NCS) portal who meet the eligibility conditions should also follow the same procedure on the SDSC SHAR website.
• SDSC SHAR is not responsible for pending or failed transactions, so do not leave the payment for the last day.

Documents, Photo Size and Fee for ISRO Technical Assistant Apply Online 2026

Upload clear scans in the sizes below. An application without the required documents is treated as invalid.

The photograph must be clear enough to identify you, and the signature must be legible. Failing this can lead to cancellation of your candidature.

Application fee and refund

The refund is not considered if you do not appear in the written test, and it goes to the bank account you enter in the form.

Common Mistakes That Can Get Your ISRO Application Rejected

• Wrong diploma class or length. The notification asks for a first class diploma of at least 3 years. A degree or ITI certificate is not listed for this post.
• Certificate not in hand by 9 November 2026. The qualification must be possessed or issued by the last date.
• Unclear photo or signature. This can lead to cancellation, so scan both clearly and stick to the size limits.
• Missing documents. Applications submitted without the requisite documents are invalid.
• Wrong email ID or mobile number. Intimation goes only to your registered email, and SDSC SHAR is not responsible if you do not receive it.
• Wrong bank details. Your refund depends on them.
• Unpaid or pending fee. The application must be submitted with payment before the deadline.
• False or hidden information. If found at any stage, your candidature can be rejected, and an appointment already made can be treated as void from the start.
• Waiting for the last day. The notification advises registering and paying well before the last date.

After You Submit the ISRO Technical Assistant Application 2026

• Download and keep your registration confirmation form. You need the registration number and date of birth to download the admit card later.
• Watch your registered email and the SDSC SHAR website for the written test date, which is still to be announced.
• Admit cards are available on shar.gov.in or apps.shar.gov.in.
• For clarifications, write to recruit@shar.gov.in. Questions already answered in the notification and frivolous queries are not replied to, and no interim correspondence is entertained.
• Keep your original certificates ready for the skill test. Outstation candidates called for the skill test get sleeper class rail fare or non-AC bus fare, whichever is less, on showing the ticket. There is no travel allowance for the written test.