IIST B.Tech Admission 2025 - Seat Allotment (Out), Rank List, Registration, Date, Counselling, Cutoff

IIST B. Tech 2025 Admission Overview

IIST B.Tech Admission 2025- Important Dates

The authority has announced the IIST B.Tech 2025 admission dates on the official website, iist.ac.in. Candidates are advised to check the important dates of IIST B.Tech 2025 admission beforehand to keep a check on the major application and admission events like the last date of registration. The following table can be referred to check the IIST B.Tech important dates 2025.

IIST B.Tech 2025 Admission Dates

IIST B.Tech Eligibility Criteria 2025

Candidates must check the eligibility criteria for IIST B.Tech admission 2025 before filling out the application form. It should be noted that no candidate will be eligible for final admission if he/she does not satisfy the IIST B.Tech eligibility conditions. Candidates can check the following table to know the detailed IIST eligibility criteria 2025 for BTech.

IIST B.Tech 2025 Eligibility Criteria

IIST B.Tech Reservation Criteria 2025

The authorities will specify the reservation criteria for IIST B.Tech admission for candidates belonging to various categories. Candidates can refer to the official notification to check the detailed reservation criteria for IIST B.Tech 2025 admission.

Reservation Policy for IIST B. Tech Admission

IIST B.Tech Application Form 2025

The authorities closed the IIST B.Tech 2025 application form link on June 9, 2025. The application form submission involved registration, form filling, and payment of the application fee. Candidates had to complete the application process for IIST Thiruvananthapuram BTech admission within the given timeline.

Steps to fill IIST B.Tech Application Form

Candidates can refer to the following steps for filling out the application form of IIST B.Tech 2025-

Step 1: Registration and form filling- Candidates who appear for JEE Advanced 2025 and satisfy all the eligibility conditions will first have to register by entering basic details like name, mobile number, etc. Candidates will also be required to enter all other required details of the form. On successful registration, candidates will receive a system-generated IIST Registration Number. Candidates will also be needed to specify a password.

Candidates will also be required to upload a scanned image of their photograph uploaded during JEE Advanced 2025 registration in this step.

Step 2: Payment of Application fee- Once all the details are entered, candidates will have to pay the registration fee of IIST B.Tech 2025. Payment of the registration fee can be done in online mode only by clicking on the “Pay Registration Fee” link. Receipt of payment will be confirmed through registered Email and mobile number.
Also check: Instructions for IIST BTech Spot Admission 2025

Application Fee for IIST B.Tech Admission 2025

IIST B.Tech Admission 2025 Rank List

The authorities released the IIST B.Tech Admission rank list 2025 online on June 12, 2025. The IIST B.Tech 2025 rank list has been generated only for candidates who have completed their registration and paid the fee before the last date. The IIST B.Tech rank list has been prepared only based on JEE Advanced scores. The authorities follow a tie-breaking rule in case of similar marks obtained by two or more candidates in the JEE Advanced 2025 examination.

IIST B.Tech Admission Rank List: Tie-breaking Rule

• In case of a tie, candidates with higher marks in Mathematics will be given a higher rank.

• If a tie still persists, candidates with higher marks in Physics will be given a higher rank.

• If a tie still persists, candidates with a higher rank in the JEE Main 2025 examination (in the respective category) will be assigned a higher rank.

IIST B.Tech Counselling and Seat Allotment 2025

The authorities are conducting the IIST B.Tech 2025 counselling and seat allotment in online mode. Candidates can refer to the complete IIST B.Tech counselling and seat allotment 2025 process given below-

IIST B.Tech 2025 Counselling: Filling-in of Branch Preferences

• Candidates shortlisted on the basis of the IIST B.Tech admission rank list will have to fill in their preferences of branches during registration.

• IIST B.Tech counselling will not be completed without entering branch preferences.

• Candidates are advised to submit their branch preferences before the last date. The choices filled by the candidates will get automatically locked after the last date.

• Candidates will not be allowed to make changes to their choices after locking.

IIST B.Tech Seat Allotment 2025

• A detailed schedule of IIST B.Tech seat allotment/Acceptance rounds is released by the authorities.

• Based on available vacancies, IIST B.Tech seat allocation is done in order of merit as per the preferences filled in by the candidates.

• Candidates satisfied with the IIST B.Tech seat allotment will have to choose the Freeze option and proceed to confirm seat acceptance.

• Candidates choosing the Freeze option will not be further considered for their higher preferences, if any.

• Candidates who wish to be considered for their higher preferences but want to confirm their allotted seat will be required to choose the Slide option and proceed to confirm seat acceptance.

• Branch choices will automatically slide up as per the preference order filled-in by the candidates on the basis of available vacancies and merit.

IIST B.Tech Seat Acceptance 2025

Candidates opting for the Freeze or Slide options during an IIST B.Tech seat allocation round are required to accept the seat. First of all, candidates are to pay the First Semester Fee amounting to INR 34000 (charges towards the Hostel and Dining amounting to INR 14400 will be collected on arrival at IIST) before the specified date in online mode. Next, the candidates are required to upload the scanned documents as mentioned below-

Documents for Verification

• Class X certificate or birth certificate

• Class XII (or equivalent examination) mark sheets (for those who appeared for this examination in 2024 and/or 2025)

• Class XII (or equivalent examination) certificate (for those who appeared for this examination in 2024 and/or 2025)

• Category (EWS/OBC-NCL/SC/ST/PD) certificates

• Transfer Certificate from the institute last attended

• Aadhaar Card

On successful uploading of documents, a provisional admit card of candidates will be generated. Candidates will be able to download their admit card by logging in to the candidate portal. Candidates must note that they will be required to produce this admit at the time of joining IIST.

To know about Re-validate Registration, forfeiture of accepted Seats, Refund Policy, and more check the official website.

IIST B.Tech 2025 Seat Matrix

Candidates can refer to the following tables to learn about the seat matrix of IIST B.Tech admission. Candidates can also check the seat matrix of dual degrees.

IIST Seat Matrix

Note: Here, ‘*’ means 10% of the total number of seats for IIST B. Tech admission.

‘**’ means supernumerary seats under the Prime Minister’s Special Scholarship Scheme for Jammu & Kashmir students (PMSSS) in the branches of Aerospace Engineering and Electronics and Communication Engineering.

Category-wise IIST B.Tech Seat Matrix

Note:

• Here, ‘*’ means 10% of the total number of seats for IIST B. Tech admission.

• ‘**’ means supernumerary seats under the Prime Minister’s Special Scholarship Scheme for Jammu & Kashmir students (PMSSS) in the branches of Aerospace Engineering and Electronics and Communication Engineering.

• The number in the bracket indicates that one PD candidate (Persons with Disabilities) is included

IIST B.Tech Cutoff 2025

The authorities will release category-wise IIST B.Tech cutoff 2025 on the official website. IIST B.Tech cutoff will include the opening and closing percentage of JEE Advanced marks and opening and closing ranks for IIST B.Tech admission 2025. Candidates qualifying for the IIST B.Tech 2025 cutoff will have higher chances of admission to the institute. As the IIST B.Tech cutoff 2025 has not been released yet, candidates can check the previous year's cutoffs given below-

IIST BTech 2024 Cutoff

IIST BTech 2023 Cutoff

IIST BTech Cutoff 2022

IIST B.Tech 2021 Cutoff

IIST B.Tech Cutoff 2020

IIST B.Tech Cutoff 2019

Check: To check IIST B.Tech Cutoff Marks in JEE Advanced 2020
Also: IIST B.Tech cutoff for previous years

IIST B.Tech Fee Structure 2025

Candidates can check the per semester fee structure of IIST B.Tech from the following table-

Contact Details

Chairperson, UG Admissions

Indian Institute of Space Science and Technology

Valiamala (P.O.), Thiruvananthapuram – 695547

Kerala, India

E-Mail: ugadmission@iist.ac.in

IIST Helpdesk: Landline Numbers: 0471-2568477, 478, 618, 418

(Monday to Friday from 9:30 a.m to 5:00 p.m)

Fax: 0471-2568556