{
  "schemaVersion": 1,
  "name": "CSAB Special 2026 Paper 1 opening and closing ranks, Special rounds 1 and 2",
  "preparedAt": "2026-09-10",
  "source": {
    "authority": "CSAB",
    "landingUrl": "https://csab.nic.in/",
    "dataUrl": "https://admissions.nic.in/csabspl/Applicant/seatallotmentresult/currentorcr.aspx",
    "paperEligibilityUrl": "https://cdnbbsr.s3waas.gov.in/s305a70454516ecd9194c293b0e415777f/uploads/2026/06/20260717295359572.pdf#page=12",
    "retrievedAt": "2026-09-10T09:56:05+00:00",
    "normalizedCsvSha256": "7830c7f74357c001ccabdae0f3ee8978b53012c7e2e25d9a3642da0981d2d139",
    "josaaPaper1ReferenceSha256": "ff486432e6c34e9286cdb5025bc289057f87652da52a37036c56cdddfe0a41a2",
    "roundPageSha256": {
      "1": "2b0548dff80fc540712dbdaf6b9951e192e6dcdb764bbaf5e103da53510076e5",
      "2": "a54a6dd7be26b2ab54294729ea93163d5a3815a00d554c798c1a00519ed5510c"
    }
  },
  "scope": {
    "year": 2026,
    "process": "CSAB_SPECIAL",
    "paper": "paper-1",
    "rankBasis": "crl",
    "population": "fresh_and_upgraded_allottees_only",
    "rowCount": 11499,
    "instituteCount": 111,
    "programmeLabelCount": 183,
    "rounds": {
      "1": 7026,
      "2": 4473
    },
    "excluded": {
      "dasa": 444,
      "paper2a": 243,
      "paper2b": 51
    },
    "uncertainRankRows": 263,
    "ambiguousProgrammeRows": 29
  },
  "methodology": [
    "Filter the pinned official-source corpus by CSAB Special quota; keep DASA separate.",
    "Reuse the JEE paper classifier, require an existing reviewed Paper 1 label or one of the three explicitly reviewed Bachelor of Technology labels, and exclude Architecture and Planning.",
    "Preserve every remaining row, its raw ranks, precision labels, source-row ordinal, source hash and programme-code candidates. Do not require an internal Admission Guardian college id.",
    "Compare rounds only within the same institute, programme label, quota, seat type and gender pool; all displayed CSAB ranks use CRL."
  ],
  "limitations": [
    "These are fresh/upgraded allottee profiles, not seat counts or all seat holders. Missing rows do not mean zero admissions.",
    "Scientific notation can hide final digits. Expanded display values are not exact ranks; exact-rank fields remain blank when precision is unverified.",
    "Same-label programme-code ambiguity is retained. Do not guess which code applies.",
    "This is a research reference, not candidate eligibility validation or CSAB support in the college predictor. The predictor continues to use its separately verified JoSAA release.",
    "Completed-round cutoffs do not guarantee admission or establish current registration, seat availability or choice-filling eligibility."
  ],
  "sampleMethod": "Three fixed distinct-college examples: exact matched gender-neutral AI/OS profiles nearest Special-round-2 CRL 25,000 (OPEN), 50,000 (OBC-NCL) and 1,00,000 (OPEN), in that order. Rank distance, then closing rank, institute code and profile identity break ties. These are not personalized recommendations.",
  "sampleRows": [
    {
      "instituteCode": 422,
      "institute": "Punjab Engineering College, Chandigarh",
      "programme": "Electronics and Communication Engineering (4 Years, Bachelor of Technology)",
      "quota": "OS",
      "quotaLabel": "Other State",
      "seatType": "OPEN",
      "genderPool": "gender_neutral",
      "rankBasis": "crl",
      "round1ClosingRank": 24141,
      "round2ClosingRank": 24932,
      "sourceRowOrdinals": [
        6714,
        3971
      ]
    },
    {
      "instituteCode": 324,
      "institute": "Indian Institute of Information Technology Surat",
      "programme": "Computer Science and Engineering (Artificial Intelligence and Machine Learning) (4 Years, Bachelor of Technology)",
      "quota": "AI",
      "quotaLabel": "All India",
      "seatType": "OBC-NCL",
      "genderPool": "gender_neutral",
      "rankBasis": "crl",
      "round1ClosingRank": 49632,
      "round2ClosingRank": 49937,
      "sourceRowOrdinals": [
        5972,
        3343
      ]
    },
    {
      "instituteCode": 428,
      "institute": "Central University of Rajasthan, Rajasthan",
      "programme": "Computer Science and Engineering (4 Years, Bachelor of Technology)",
      "quota": "AI",
      "quotaLabel": "All India",
      "seatType": "OPEN",
      "genderPool": "gender_neutral",
      "rankBasis": "crl",
      "round1ClosingRank": 89556,
      "round2ClosingRank": 99488,
      "sourceRowOrdinals": [
        6940,
        4152
      ]
    }
  ],
  "distribution": {
    "contentUrl": "/data/csab_2026_special_rounds_paper1_cutoffs.csv",
    "encodingFormat": "text/csv",
    "bytes": 5378408,
    "sha256": "bbcfb0986ca24cb44a8266fbaa572a4988784df5dc48930e445730eb5e04ce82"
  }
}