RRB Non-Technical Popular Categories (NTPC) and Level-1 (Group D) Centralised Employment Notifications

RESOLVES the HIGH-PRIORITY conflict flagged by the prior pass, using the actual current-cycle CEN. Verified directly against CEN No. 09/2025 (Group-D / Level-1), the 'Final-Detailed CEN 09-2025 Level-1' PDF updated 30.01.2026 and hosted on rrbajmer.gov.in (one of the RRB zonal mirrors; the same CEN is mirrored across all RRB zone sites). KEY FINDING: the previously-conflicting photo KB ranges (20-50 vs 30-70 for NTPC; 50-100 vs 30-70 for Group D) are MOOT for the current cycle, because THE PHOTOGRAPH IS NO LONGER A SEPARATE UPLOADED FILE. Section 16.4 'Live Photo Capturing of the Candidate during Application' states the application module captures a live photo via webcam or the phone's front camera; 'Candidates are not required to upload a pre-existing photograph while applying.' There is no photo KB/pixel spec anywhere in the 74-page CEN 09/2025 document. The photo.width_px/height_px/min_kb/max_kb values above are therefore legacy/conventional placeholders only (not from the current notification) and should be presented to users with a clear 'captured live in the RRB portal, not a file you upload' caveat. SIGNATURE is precisely specified in Section 16.5.1 'Candidate Signature': JPG/JPEG only, scanned at minimum 100 DPI, 'File size: Between 30 KB and 49 KB', 'Image dimensions: Minimum 140 pixels (width) x 60 pixels (height)', positioned within a 35mm x 20mm scan box, black ink on white paper, running/cursive handwriting (block/capital letters are an explicit rejection ground). This is a DIRECT, HIGH-CONFIDENCE PRIMARY-SOURCE MATCH for Group D. For RRB NTPC, the CEN 07/2025 (Undergraduate) PDF obtained from rrbchennai.gov.in / rrbajmer.gov.in was an image-only scan that could not be text-extracted in this pass; however, a secondary source explicitly citing 'para no. 14.5.1 of detailed CEN 06/2025' (the NTPC-Graduate sibling notification, same board, same recruitment season) states an identical signature spec: 140x60px, 30-49KB, JPG/JPEG, black ink, running handwriting, within a 50mm x 20mm box (only the box's cm dimensions differ slightly from Group D's 35mm x 20mm -- the pixel/KB figures match exactly). Combined with RRB's practice of using one standardized template across all CENs issued in the same cycle, this is treated as confirmed-by-strong-corroboration for NTPC, not independently re-verified from NTPC's own PDF text. Given both NTPC and Group D now converge on the same photo (live-capture, no fixed spec) and signature (140x60px, 30-49KB) requirements for the current 2025-26 recruitment cycle, they are kept as ONE combined file per the task instructions, updating the prior pass's separate-conflict findings into a single resolved entry. A left-hand-thumb-impression fallback (for PwBD candidates unable to sign) is mentioned but has no separate digital-upload spec of its own.