# Mumbai-Ahmedabad high-speed rail progress > Live situation record from CLSTR: https://clstr.news/situations/india-mumbaiahmedabad-bullet-train-progress > Updated: 2026-08-15T05:25:47.000Z. Sources: 28. Developments: 9. By August 2026, officials clarified that the first 50-km segment between Surat and Bilimora is targeted for an August 15, 2027, launch. The full 508-km corridor, utilizing Japanese Shinkansen technology with speeds up to 320 km/h, is expected to be fully operational by 2029. As of mid-August 2026, major engineering works continue to advance. In Mumbai, the Bandra Kurla Complex (BKC) station is being constructed 30 meters underground at a cost of ₹3,680 crore. Excavation also continues on the 7-kilometer undersea tunnel near Mumbai using advanced tunnel boring technology. Meanwhile, in Surat, structural work on the station is nearing completion, featuring designs inspired by the local diamond industry. ## Claims - The first section of the high-speed rail corridor is planned to begin operations by August 15, 2027. (corroborated by 3 sources) - The full 508-kilometer Mumbai-Ahmedabad corridor is targeted for completion by 2029. (corroborated by 3 sources) - The trains will have an operational speed of 320 kilometers per hour. (corroborated by 3 sources) - The first operational section will cover approximately 50 kilometers between Surat and Bilimora in Gujarat. (corroborated by 3 sources) - A 7-kilometer undersea rail tunnel is being constructed near Mumbai. (corroborated by 3 sources) - The project utilizes Japanese Shinkansen high-speed rail technology. (corroborated by 3 sources) - The Bandra Kurla Complex (BKC) station is being built at a cost of ₹3,680 crore. (single source) - The total project cost is estimated at ₹1,08,000 crore. (single source) ## Timeline ### 2026-08-15: Mumbai-Ahmedabad Bullet Train project targets 2027 launch for first section India's Mumbai-Ahmedabad bullet train project aims to launch its first 50km section in Gujarat by August 2027, with the full 508km high-speed corridor expected to be operational by 2029. 6 sources. https://clstr.news/cluster/indias-mumbai-ahmedabad-bullet-train-first-section-to-launch-in-2027 ### 2026-07-17: India Dismisses Japanese Ex‑Minister's Bullet Train Critique India’s MEA rejected former Japanese minister Hideki Makihara’s criticism of the Mumbai‑Ahmedabad bullet train, calling his remarks an individual opinion and confirming the project stays on track for a 2027‑202 8 sources. https://clstr.news/cluster/india-refutes-ex-japan-ministers-criticism-affirms-2030-bullet-train-goal ### 2026-07-17: India-Japan High‑Speed Rail Project to Launch Mumbai‑Ahmedabad Bullet Train by 2027 India and Japan will start the Mumbai‑Ahmedabad bullet‑train corridor in August 2027 using an Indian train, with Japan’s E10 Shinkansen to follow in the early 2030s. 6 sources. https://clstr.news/cluster/india-japan-highspeed-rail-project-to-launch-mumbaiahmedabad-bullet-train-by-2027 ### 2026-07-03: India's Mumbai‑Ahmedabad Bullet Train 80% complete as tunnel work launches India's Mumbai‑Ahmedabad bullet train is about 80 % complete, with the first Surat‑Bilimora section set for 2027 and tunnel‑boring for the Mumbai underground segment starting Sunday. 4 sources. https://clstr.news/cluster/indias-mumbaiahmedabad-bullet-train-80-complete-as-tunnel-work-launches ### 2026-06-30: India's Mumbai‑Ahmedabad High‑Speed Rail to Start Operations in 2027 India will launch the first 100‑km segment of its Mumbai‑Ahmedabad high‑speed rail between Surat and Vapi in 2027, part of a 508‑km Shinkansen‑based line funded largely by a $17 billion Japanese loan. 2 sources. https://clstr.news/cluster/indias-mumbaiahmedabad-highspeed-rail-to-start-operations-in-2027 ### 2026-06-13: Tunnel hoods installed for Mumbai‑Ahmedabad bullet train’s mountain tunnels India has built tunnel hoods for the Mumbai‑Ahmedabad bullet train’s mountain tunnels, helping control pressure waves, reduce noise and improve high‑speed rail safety. 2 sources. https://clstr.news/cluster/tunnel-hoods-installed-for-mumbaiahmedabad-bullet-trains-mountain-tunnels ### 2026-06-13: India's Mumbai‑Ahmedabad Bullet Train Gets First Tunnel Hood Technology India’s first tunnel hoods are being installed on the Mumbai‑Ahmedabad bullet‑train corridor to reduce tunnel‑boom noise and improve high‑speed rail performance. 4 sources. https://clstr.news/cluster/indias-mumbaiahmedabad-bullet-train-gets-first-tunnel-hood-technology ### 2026-06-12: India's Mumbai-Ahmedabad High-Speed Rail Project Advances Toward 2027 Launch India’s 508‑km Mumbai‑Ahmedabad high‑speed rail, built with Japanese Shinkansen tech, is progressing on bridges and tunnels, targeting a August 2027 launch and cutting travel time to under two hours. 2 sources. https://clstr.news/cluster/indias-mumbai-ahmedabad-high-speed-rail-project-advances-toward-2027-launch ### 2026-06-02: Mumbai-Ahmedabad bullet train project marks third mountain tunnel breakthrough India’s Mumbai‑Ahmedabad high‑speed rail completed its third mountain tunnel (MT‑07) in Palghar, Maharashtra, using controlled drilling and real‑time monitoring, advancing the 508‑km bullet‑train line slated to 2 sources. https://clstr.news/cluster/mumbai-ahmedabad-bullet-train-project-marks-third-mountain-tunnel-breakthrough --- Cite as: Mumbai-Ahmedabad high-speed rail progress. CLSTR, https://clstr.news/situations/india-mumbaiahmedabad-bullet-train-progress