IIT Delhi admission is not a single institute application. For undergraduate entry, the route depends on the degree: JEE (Main) is the first stage for the JEE (Advanced) route; qualifying JEE (Advanced) is followed by a separate JoSAA choice and seat-allocation process. A JEE rank is therefore not an offer by itself. The institute’s undergraduate programme page describes JEE (Advanced), after JEE Main, as the route for its undergraduate programmes; its 2026-27 new-entrant page identifies that year’s incoming students by JEE (Advanced) 2026, Preparatory 2025 and UCEED 2026, across B.Tech., integrated B.Tech.-M.Tech., B.Des. and B.S. programmes. Those are specific to the 2026-27 cohort, not a promise that the 2027-28 rules will be identical.
The practical first question is which programme you want, not simply whether you want “IIT Delhi.” Most engineering and science options use JEE (Advanced) plus JoSAA. Design has a separate UCEED route for B.Des.; IIT Delhi’s B.Tech. in Design instead requires JEE (Advanced) and a UCEED qualification. Check the current programme list and its eligibility before filling choices because degree names can look similar while their admission routes differ.
For Indian candidates in the 2026 cycle, the JEE (Advanced) information brochure says a candidate first had to appear in JEE (Main) 2026 B.E./B.Tech. and be among the top 2,50,000 successful candidates across categories, subject to its category-wise allocation and tie rules. The brochure also sets other simultaneous conditions, including the age limit, a maximum of two attempts in two consecutive years, when the candidate first appeared in Class XII or an equivalent examination, and restrictions connected with prior IIT admission. These are dated 2026 conditions; do not use the 2026 birth-date cut-off or attempt window to judge eligibility for 2027.
The distinction matters in planning: an excellent JEE Main percentile does not automatically make someone eligible for JEE (Advanced), and registering for Advanced does not establish that every later admission condition is met. Read the full JEE (Advanced) 2026 brochure, including the nationality-specific clauses and document requirements, rather than relying on a short eligibility summary. OCI/PIO status can affect the route, rank lists and reservation treatment, so candidates in those categories should use the official clauses for their exact status. The exam’s official rules govern the exam; JoSAA’s rules govern the subsequent allocation.
There is a second checkpoint after the entrance examination: the 2026 IIT admission rules required candidates to meet a Class XII performance condition, with Physics, Chemistry and Mathematics as compulsory subjects. A candidate had to satisfy either at least 75% aggregate marks (65% for SC, ST and PwD candidates) across the specified five-subject calculation, or the category-wise top-20-percentile condition for the relevant board and year. The five subjects used in the stated calculation are Physics, Chemistry, Mathematics, one language, and the highest-scoring other subject. The brochure gives special rules for improvement examinations and board marksheets, so candidates whose results span attempts or boards should read those clauses closely.
This is not the same as the JEE (Advanced) qualifying rank. Treat them as two independent checks: eligibility to appear for the exam, then eligibility for admission after a seat is allocated. A qualifying rank does not waive the board condition. Conversely, being above the board threshold does not replace the entrance route. The thresholds and calculation above describe the 2026 rules only; they should not be presented as confirmed 2027-28 criteria until the next official brochure states them.
At IIT Delhi, the programme title determines which entrance route to verify. The institute’s academic rules page describes B.Tech. admission through JEE (Main) and JEE (Advanced), and B.Des. through UCEED. IIT Delhi’s 2025 announcement for B.Tech. in Design says applicants need a JEE (Advanced) rank and must qualify in UCEED; the institute describes the programme as a four-year degree introduced for 2025-26. Its 2025 curriculum announcement also records a B.S. in Chemistry with entry through JEE (Advanced). These examples explain why “design” should not be treated as one generic route: B.Des. and B.Tech. in Design have different stated conditions.
For the 2026-27 intake, the institute’s new-entrant information explicitly groups B.Tech., B.Tech. + M.Tech., B.Des. and B.S. entrants, while pointing students to JEE (Advanced) 2026, Preparatory 2025 and UCEED 2026 entry contexts. For an applicant, the safe sequence is to identify the exact degree and programme code in the current JoSAA or UCEED material, then verify that programme’s eligibility and any additional test requirement. A programme being listed on a general undergraduate page does not establish its current seat count, cutoff or intake-year availability.
Candidates with a JEE (Advanced) rank seek IIT seats through JoSAA. In the 2026 business rules, applicants were instructed to select every academic programme they were genuinely willing to join and arrange choices in preference order. JoSAA does not consider an unlisted programme for that candidate. The rules also require candidates to lock choices by the deadline; saved choices may be locked automatically at the deadline, while unsaved choices are not protected. Once the choice-filling window closes, candidates cannot add, delete or reorder programmes. This makes the order consequential: list a programme above another only if you would prefer the higher option when both are feasible.
Allocation then applies rank lists, category and seat rules, candidate preferences and available seats. IIT Delhi’s official material directs incoming students to the JoSAA process; the exact programme list and seat matrix are cycle-specific. Do not infer a likely seat from an old closing rank without matching the year, programme, category, quota, gender pool and counselling round. The admission page is not a cutoff table, and the current JoSAA portal is the place to check the live schedule, business rules, seat matrix and opening/closing-rank tools when the next cycle opens. For the 2026 IIT/IISc process, JoSAA’s rules listed five rounds, with Round 5 marked final for IITs/IISc; that historical schedule is not the 2027 schedule.
After an allotment, follow the response steps and deadline for that round. JoSAA’s 2026 rules describe options such as Freeze, Slide and Float for candidates whose allotment permits them. Freeze means accepting the offered programme and ending consideration in later rounds; once chosen, it cannot be changed. The rules specify a special case when the candidate receives their first preference: only Freeze or rejection is available. Options are unavailable in the final round. These labels have real consequences, so compare them with your preference order and the live notice rather than treating them as informal status buttons.
A candidate who accepts a seat must complete the prescribed online-reporting steps, including required document uploads, responses to queries and seat-acceptance-fee payment within the time set for that round. The 2026 rules warn that missing a required payment or reporting step can cancel the seat and remove the candidate from further allocation. The seat-acceptance fee is generally paid once when a seat is first allotted, but the current rules govern exceptions and any withdrawal consequences. Keep copies of submitted documents and monitor the JoSAA portal during each deadline window. The dates, payment details, choices and number of rounds above refer to the 2026 process; wait for the new JoSAA schedule before planning a 2027 deadline.
JoSAA allocation is followed by institute-side joining instructions. IIT Delhi’s 2026-27 UG new-entrant page tells that year’s admitted students to prepare the forms and documents needed for Form A, arrange original documents in the stated sequence with self-attested photocopies, and upload required documents through the institute portal. The page warns that missing uploads can put registration on hold. It also says eligible Indian entrants must provide an APAAR (Academic Bank of Credits) ID; the 2026 instructions direct students who do not already have one to obtain it through DigiLocker. The page gives a different entry instruction for foreign-national students, so applicants should follow the section applying to them.
Use these as a practical preview of the transition from allotment to registration, not as a checklist for a future cohort. The institute can update document formats, verification dates, identity requirements and portal steps. For the class of 2026-27, IIT Delhi posted a late document-verification session in August 2026; that notice is historical. When your seat is confirmed, rely on the current welcome email and official new-entrant page for exact forms and deadlines. Do not send identity documents to unofficial contacts or assume that uploading them to JoSAA completes IIT Delhi’s separate registration.