CSAB Seat Matrix 2026 (OUT): Check Vacant NIT/IIIT/GFTI Seats After JoSAA Counselling

Central Seat Allocation Board 2026 ( CSAB )

Mamona
Mamona Majumder
Deputy Manager
Updated on Jul 28, 2026 13:26 IST
The CSAB 2026 seat matrix indicates the institute-wise and programme-wise vacant seats available after the JoSAA counselling last rank. The list of colleges with Quota & Category wise vacancies will be available at csab.nic.in. The seat matrix helps candidates understand where vacancies exist after JoSAA counselling.

The CSAB seat matrix 2026 is available now. CSAB seat matrix PDF shows total vacant seats in NITs, IIITs, and GFTIs after JoSAA rounds. Candidates can check state, category, and course breakdowns on the Central Seat Allocation Board portal and on this page below.

CSAB Seat Matrix

CSAB Seat Matrix 2026

CSAB Counselling 2026 Seat Matrix for NITs, IIITs & GFTIs: The Central Seat Allocation Board has released the seat matrix for  NITs, IIITs & GFTIs. Candidates can now check CSAB 2026 seat matrix on the official website. CSAB seat matrix indicates the institute-wise and programme-wise vacant seats available after the JoSAA counselling last rank. The list of colleges with Quota & Category wise vacancies is now available at csab.nic.in

The seat matrix helps candidates understand where vacancies exist after JoSAA counselling. It enables students to identify institutes and branches with available seats. They can make realistic, strategic choice lists during CSAB 2026 counselling and prioritise colleges with higher vacancy rates.

Table of contents
  • What is the CSAB 2026 Seat Matrix?
  • How to Check the CSAB Seat Matrix 2026?
  • How is the CSAB Special Counselling 2026 Seat Matrix Prepared?
  • Details Available in CSAB 2026 Seat Matrix
  • Difference Between JoSAA Seat Matrix and CSAB Seat Matrix
  • CSAB Counselling 2026 Participating Colleges

What is the CSAB 2026 Seat Matrix?

The CSAB 2026 seat matrix is a detailed PDF containing the number of vacant seats available for admission through the CSAB special rounds. These seats become available after candidates withdraw, fail to report, or surrender their JoSAA-allotted seats. The authorities have updated the matrix, and it serves as the basis for seat allotment in the special rounds.

 
📊 CSAB 2026 Resources
Download CSAB 2026 Seat Matrix
Check the institute-wise and category-wise seat availability for NITs, IIITs & GFTIs before finalising your CSAB choice filling.
 📥 Download CSAB Seat Matrix PDF

How to Check the CSAB Seat Matrix 2026?

Candidates can follow these steps to check the seats available in CSAB participating colleges:

  • Visit the official CSAB website.
  • Open the CSAB Special 2026 counselling portal.
  • Click on the Seat Matrix link.
  • Download the PDF.
  • Search for your preferred institute and branch using the search option (Ctrl + F on desktop).

Also Read: CSAB 2026 Home State and All India Quota Seats: Check Vacancy for NITs/IIITs/GFTIs

Q&A Icon
Commonly asked questions
Q:   How can I check the CSAB opening and closing ranks?
A: 

Candidates can check CSAB opening and closing ranks on the official website, csab.nic.in. They have to enter the details asked to check the list of courses and colleges based on the or and CR of each counselling round.

Q:   What is the registration fee for CSAB counselling?
A: 

There is no fee to register for any CSAB counselling round. However, fees must be paid after registration and seat allotment as required and as per the schedule of CSAB counselling.

Q:   Are CSAB cutoffs generally lower or higher than JoSAA cutoffs?
A: 

CSAB cutoffs are usually lower or higher in rank (i.e., less competitive) than JoSAA cutoffs.

Q:   When will CSAB counselling start?
A: 

The CSAB special counselling started on July 28.

How is the CSAB Special Counselling 2026 Seat Matrix Prepared?

The CSAB seat matrix is prepared dynamically after the conclusion of JoSAA counselling rounds, combining unfilled/vacated seats from the NIT+ system. To prepare the seat mtrix the following will be considered:

  • JoSAA Exit Data: Compiles all seats left vacant after JoSAA final rounds due to non-reporting, withdrawals, or unallocated slots in participating NITs, IIITs, and GFTIs.
  • Surrendered Seats: Includes seats dropped or surrendered by candidates during the transition windows.
  • Seat Conversion Rules: Vacant reserved category seats (such as SC, ST, or PwD) that find no eligible takers are converted back to general or open categories according to strict government rules.
  • Quota Re-mapping: State-wise and gender-neutral or female-only pool left over seats are recalculated.

Details Available in CSAB 2026 Seat Matrix

The seat matrix contains the following information:

  1. Name of the participating institute
  2. Branch/programme offered
  3. Institute code and programme code
  4. Category-wise seat availability (Open, EWS, OBC-NCL, SC, ST, PwD, etc.)
  5. Gender-wise seat distribution, wherever applicable
  6. Number of vacant seats available in each programme
  7. Participating Institutes
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Difference Between JoSAA Seat Matrix and CSAB Seat Matrix

Know how the seat matrix of the JoSAA counsselling differs from that of the CSAB 2026:

JoSAA Seat Matrix  CSAB Seat Matrix
Total approved seats  Only vacant seats after JoSAA
Released before JoSAA counselling  Released before CSAB Special Rounds
Includes all seats  Includes only unfilled seats

CSAB Counselling 2026 Participating Colleges

Admissions through the CSAB Special Rounds are conducted for vacant seats in:

  • 31 National Institutes of Technology (NITs)
  • IIEST Shibpur
  • Indian Institutes of Information Technology (IIITs)
  • Government Funded Technical Institutes (GFTIs)
Q&A Icon
Commonly asked questions
Q:   What steps should a student follow for seat allotment during CSAB counselling?
A: 

Central Seat Allocation Board will release the CSAB counselling seat allotment result online at the official website. Candidates can follow the steps below to complete CSAB counselling registration. 

  • Visit the CSAB official website for online registration. 

  • Fill your choices of courses and colleges and lock them. 

  • Participate in the seat allotment round as per the schedule. 

  • Fee payment for seat acceptance and document verification process. 

  • Report to the allotted college. 

Q:   What is the official website to check CSAB cutoff?
A: 

The official website to check CSAB cutoff is csab.nic.in.

Q:   Do the JoSAA registered candidates need to fill CSAB application form separately?
A: 

Yes, applicants who wish to particpate in CSAB have to register online from the CSAB official website as both CSAB and JoSAA are separate counselling processes. The document verification of such candidates will not be conducted again, as the documents are verified during JoSAA.

Q:   Can I add unlimited choices in CSAB counselling?
A: 

Yes, you can add as many eligible institutes and programs as you want in the CSAB counselling choice filling process.

Q&A Icon
Commonly asked questions
Q:   Where do I fill my CSAB counselling choices?
A: 

Candidates have to use the official CSAB portal and login with your credentials to access the choice filling link.

Q:   Where can I check previous year CSAB cutoff trends?
A: 

You can verify and analyse the previous year CSAB opening and closing ranks at csab.nic.in.

Q:   What are the registration dates and counselling fees for CSAB?
A: 

CSAB 2026 counselling registration last date was August 3.

Q:   What is the difference between save and lock in CSAB choice filling?
A: 

Save keeps your CSAB choice list editable. Lock finalises the choice list before the deadline.

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About the Author
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Mamona Majumder
Deputy Manager

Currently - Deputy Manager, Content

Role - News and Feature Writer, Content Editor

Expertise - Engineering Education and Counselling

Mamona Majumder specialises in news and feature writing and content editing. With

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Answered a month ago

With your OBC-NCL rank of 38,613 and CRL rank of 1,16,715 with Odisha Home State quota, you can target lower or core/dual-degree and Science branches in mid-to-lower tier NITs, newer IIITs, and system-aligned GFTIs during the CSAB Special Round.

S

Swati Pandey

Contributor-Level 8

Answered 2 months ago

With rank under 50,000, you can target CSE/ECE in newer IIITs (Kalyani, Dharwad), core branches in top NITs (Jalandhar, Bhopal), and tech branches in GFTIs (JNU, BIT Mesra).

A

Akansha Bhandari

Contributor-Level 8

Answered 2 months ago

You can verify and analyse the previous year CSAB opening and closing ranks at csab.nic.in.

M

Manori Karan

Contributor-Level 8

Answered 2 months ago

Yes. CSAB retains the Home State (50% quota) and Other State (50% quota) categorisations for NITs, just like in JoSAA.

N

Nishtha Shrivastava

Contributor-Level 8

Answered 2 months ago

CSAB cutoffs are usually lower or higher in rank (i.e., less competitive) than JoSAA cutoffs.

M

Manori Patra

Contributor-Level 8

Answered 2 months ago

Yes, CSAB counselling has started for NIT Andhra Pradesh BTech admission. The last date to register for the BTech course via CSAB was August 3, 2026. 

S

Saurabh Khanduri

Contributor-Level 10

Answered 2 months ago

NIT Raipur sees its final BTech vacancies filled during the CSAB rounds in late July or early August. These rounds start only after the regular JoSAA process is completely finished. It is a fast-paced process that lasts for about a week. You must act quickly to upload documents and pay fees if you g

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Rashmi Karan

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