JoSAA 2026 B.Arch Seat Matrix – Institutes, Seats & Category Split

The "seat matrix" in JoSAA counselling refers to the official document listing every institute-program combination available for allotment, along with the exact number of seats in each category (General, OBC-NCL, SC, ST, EWS, PwD) and quota (Home State/Other State, where applicable). For B.Arch, this matrix is a fraction of the size of the B.Tech seat matrix, since only a limited number of NITs and other GFTIs run architecture departments capable of offering the program.

Illustrative Seat Matrix Structure (Not Official Figures)

Figures above are illustrative approximations to help you understand scale, not official numbers. The exact seat matrix for 2026 will be published by JoSAA closer to the counselling window — always refer to josaa.nic.in for authoritative, up-to-date figures.

How Category-wise Distribution Works

Within each institute's total B.Arch seat count, seats are further divided according to India's central reservation framework. A typical breakdown concept (illustrative, not fixed) allocates a share to OBC-NCL, SC, ST, and EWS categories, with the remaining seats in the Open/General category. Additionally, a portion of seats within each category may carry PwD (Persons with Disability) horizontal reservation. At NIT-level institutes, seats are also split by Home State and Other State quota, meaning a fixed proportion is reserved for candidates domiciled in the state where the NIT is located, while the remainder is open to candidates from other states.

Why Understanding the Seat Matrix Matters

Knowing the rough scale and structure of the B.Arch seat matrix helps set realistic expectations before choice filling. Since total seats across all institutes combined may only number in the low hundreds nationally, candidates should understand that competition per seat, especially within a specific category and quota bracket, can be intense. This also explains why opening and closing ranks for B.Arch programs can appear tighter or more volatile compared to larger B.Tech branches with hundreds of seats per institute.

How to Use the Seat Matrix While Choice Filling

Before finalizing your JoSAA choice list, cross-reference the official seat matrix to confirm which institutes and category/quota combinations you are actually eligible for. This avoids wasting choice-filling effort on institutes or categories where you have no realistic chance, and instead helps focus your list on the genuine, eligible set of options across the smaller B.Arch landscape.

Seat Matrix vs Cutoff Data — What's the Difference?

It helps to understand that the seat matrix and cutoff (opening/closing rank) data are two different documents serving different purposes. The seat matrix tells you how many seats exist in each institute-program-category-quota combination before counselling begins — essentially the "supply" side. Cutoff data, published after each round, tells you the rank range within which candidates actually secured admission — the "demand" side, reflecting how competitive that specific combination turned out to be. Both documents together give a complete picture: the seat matrix shows what's available, while cutoff trends show how hard it typically is to get in.

How Supernumerary and PwD Seats Factor In

Beyond the core category and quota seats, many institutes also maintain supernumerary seats — extra seats added over and above the base sanctioned intake, often to improve gender diversity or accommodate specific reservation mandates like PwD (Persons with Disabilities). These supernumerary seats do not reduce the availability of seats for other categories; they exist in addition to the standard matrix. When reviewing the official seat matrix, look for footnotes or separate rows indicating supernumerary allocations, since these can sometimes offer additional pathways into a desired institute for eligible candidates.