This document is an open e-tendering notice from Northern Railway, Ambala, dated July 24, 2026, inviting bids for various infrastructure projects.The notice lists six distinct works, including track rehabilitation, bio-toilet testing lab setup, and sewage treatment plant provision.The approximate costs for these projects range from approximately ₹76 lakh to over ₹5 crore.All tenders require the submission of scanned eligibility documents (PAN/TIN/GST) and a digital signature for participation via the IREPS website by August 17, 2026.