What is CSAB Counselling 2027?
The Central Seat Allocation Board (CSAB) conducts special counselling rounds to fill all residual vacant seats across 32 NITs, 26 IIITs, IIEST Shibpur, and 40 GFTIs after the completion of all JoSAA regular rounds and reporting.
Thousands of premier engineering seats remain unoccupied each year due to seat cancellations, non-payment of partial admission fees (PAF), or students opting for IITs/BITS. CSAB Special Rounds offer an incredible opportunity for candidates to secure significant branch and college upgrades at much higher closing ranks.
Key Insight: IITs do not take part in CSAB Special Rounds. CSAB conducts admissions exclusively for the NIT+ System using candidates' JEE Main 2027 CRL (Common Rank List) Ranks. Category ranks are used only to determine eligibility, but allocation order follows CRL rank.
CSAB 2027 Special Rounds Official Schedule & Dates
| Activity / Event | Start Date & Time | End Date & Time | Action Required |
|---|---|---|---|
| Display of Vacancy Matrix on CSAB Portal | 1st Week of August 2027 (10:00 AM) | — | Vacancy Check |
| CSAB Registration, Fee Payment & Choice Filling Starts | 1st Week of August 2027 (10:00 AM) | 1st Week of August 2027 (5:00 PM) | Fresh Choice Locking |
| Display of CSAB Special Round 1 Seat Allotment | 2nd Week of August 2027 (5:00 PM) | — | Round 1 Result |
| Online Reporting for Round 1 (Fee, Docs, Willingness) | 2nd Week of August 2027 (5:00 PM) | 2nd Week of August 2027 (5:00 PM) | Freeze/Float/Surrender |
| Last Day to Respond to Document Query (Round 1) | 2nd Week of August 2027 | 5:00 PM Deadline | Query Resolution |
| Display of CSAB Special Round 2 Seat Allotment | 3rd Week of August 2027 (5:00 PM) | — | Final Allotment |
| Online Reporting / Document Upload (Round 2 Allottees) | 3rd Week of August 2027 | 3rd Week of August 2027 (5:00 PM) | Final Confirmation |
| Physical Reporting & Class Commencement at Allotted Institute | 3rd/4th Week of August 2027 | Institute Specific Date | Campus Reporting |
CSAB Candidate Eligibility Matrix (Type 1 to Type 7)
Whether you participated in JoSAA or not, CSAB classifies all candidates into specific eligibility categories:
| Type | Candidate Background Profile | JoSAA Status | Eligible for CSAB? |
|---|---|---|---|
| Type 1 | Did not register in JoSAA 2027 | No JoSAA Registration | Fully Eligible |
| Type 2 | Registered in JoSAA, but no seat was allotted in any round | No JoSAA Allotment | Fully Eligible |
| Type 3 | Allotted seat in JoSAA, paid SAF & PAF, and holding confirmed seat | Holding NIT+ Seat | Eligible (Retains Seat) |
| Type 4 | Allotted seat in JoSAA, paid SAF, but withdrew before PAF round | Withdrawn Seat | Fully Eligible |
| Type 5 | Allotted seat in JoSAA, paid SAF, but cancelled due to non-payment of PAF | PAF Default | Fully Eligible |
| Type 6 | Allotted seat in JoSAA, but rejected during document verification (state/category) | Document Issue | Eligible with Valid Docs |
| Type 7 | Allotted IIT seat in JoSAA and paid SAF/reported | Holding IIT Seat | Eligible (Must Forfeit IIT) |
CSAB 2027 Fee Structure, Participation Fee & Refund Rules
CSAB requires a Special Round Participation Fee (SRPF) at the time of registration. If you already paid JoSAA Seat Acceptance Fee (SAF) and Partial Admission Fee (PAF), your fees are automatically adjusted as detailed below:
| Candidate Category / JoSAA Status | GEN / GEN-EWS / OBC-NCL | SC / ST / PwD | Fee Breakdown & Adjustment |
|---|---|---|---|
| Fresh Candidates / No JoSAA Allotment | ₹44,000 | ₹24,000 | ₹5,000 Non-refundable Processing + ₹39k/₹19k Institute Fee |
| Candidates with JoSAA Seat (SAF + PAF Paid) | ₹5,000 | ₹5,000 | Only non-refundable CSAB processing fee payable |
| Candidates who paid JoSAA SAF but Withdrew/No PAF | ₹5,000 or Differential | ₹5,000 or Differential | Adjusted against refundable balance of JoSAA SAF |
Refund If No Seat Is Allotted
If a candidate is not allotted any seat in either CSAB Special Round 1 or Round 2, the participation fee is refunded after deducting only the ₹5,000 processing charge.
Refund If Seat Allotted & Surrendered
If allotted a fresh seat in Special Round 1 and you choose Surrender and Exit within the deadline, your fee is refunded after deducting the ₹7,000 withdrawal processing fee.
Seat Allocation Decisions & Willingness Options in CSAB
Upon receiving an allotment in CSAB Special Round 1, candidates have 5 distinct willingness options:
| Willingness Option | Meaning & Implication | Impact on Existing / JoSAA Seat |
|---|---|---|
| Freeze | Accept the allotted seat finally. You do not wish to participate in Special Round 2. | Seat confirmed. You proceed directly to institute reporting. |
| Float | Accept current seat, but remain open for higher choices across all colleges in Round 2. | Current seat safely retained if higher choice is not allotted. |
| Slide | Accept current seat, but want higher branches within the same allotted institute in Round 2. | Current branch retained if higher branch not allotted. |
| Surrender & Participate | Reject currently allotted seat, but participate in Round 2 for other higher choices. | Allotted seat is released to the vacancy pool; no claim on it. |
| Surrender & Exit | Reject currently allotted seat and exit CSAB completely. | Candidate exits CSAB. Eligible for refund as per rules. |
Find NITs & IIITs You Can Get in CSAB Special Rounds
CSAB closing ranks are significantly more relaxed compared to JoSAA Round 6. Check closing ranks for top branches in NIT Trichy, Surathkal, Warangal, IIIT Hyderabad, and GFTIs.
Detailed Comparison: JoSAA Counselling vs CSAB Counselling
| Feature | JoSAA Counselling 2027 | CSAB Special Rounds 2027 |
|---|---|---|
| Institutes Covered | IITs (23), NITs (32), IIITs (26), GFTIs (40) | NITs (32), IIITs (26), IIEST (1), GFTIs (40) — No IITs |
| Number of Rounds | 5 to 6 Regular Rounds | 2 Special Rounds |
| Registration Fee | ₹0 (Free initial registration) | ₹44,000 (GEN) / ₹24,000 (SC/ST) participation fee |
| Choice Filling | Done once before Round 1 for all rounds | Fresh choice filling mandatory based on vacancy matrix |
| Merit Criteria Used | Category Rank & CRL Rank | Strictly JEE Main CRL (All-India Rank) for allocation |
| Seat Availability | All sanctioned seats in seat matrix (60,000+) | Residual vacant seats (approx. 10,000+) |
| Cutoff Ranks Trend | Competitive and strict cutoffs | Significantly relaxed closing ranks & massive jumps |
Frequently Asked Questions — CSAB Counselling 2027
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