https://nammablr.vercel.app/changes Dated developments on Bengaluru infrastructure projects (sanctions, tenders, awards, cost and deadline revisions, openings), each with its source. en-in https://nammablr.vercel.app/projects/bmtc-electric-buses bmtc-electric-buses/2026-09-07/sanctioned Mon, 07 Sep 2026 00:00:00 GMT BMTC Karnataka Cabinet approved procurement of 4,500 electric buses for BMTC under the PM E-DRIVE scheme; state expenditure estimated at roughly ₹600 crore a year (~₹12,000 crore over 20 years), with a further ₹2,000 crore central loan sought for depot development. Source: Urban Acres (news). https://nammablr.vercel.app/projects/peripheral-ring-road peripheral-ring-road/2026-05-08/bid_received Fri, 08 May 2026 00:00:00 GMT BDA Two firms — Shankara Narayana Constructions and Vishwa Samudra Engineering — submitted bids for Package 1 (Tumkur Road–Bellary Road, 19.80 km, ~₹3,348 cr). Source: PropNewz (news). https://nammablr.vercel.app/projects/metro-phase-3 metro-phase-3/2026-01-14/tender_floated Wed, 14 Jan 2026 00:00:00 GMT BMRCL BMRCL invited civil construction bids for the first 18.581 km of the Orange Line in three packages (JP Nagar 4th Phase–Kamakya, Hosekerehalli–Nagarbhavi Circle, Vinayaka Layout–BDA Complex Nagarbhavi), combined estimated cost ₹4,187.41 crore. Bid submission deadline 2026-02-25. Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/hebbal-silkboard-tunnel hebbal-silkboard-tunnel/2025-12-01/bid_received Mon, 01 Dec 2025 00:00:00 GMT B-SMILE Financial bids opened; Adani Group emerged lowest bidder (L1) at ₹22,267 crore against the government's ₹17,698 crore estimate. Source: PropNewz (news). https://nammablr.vercel.app/projects/metro-phase-3a metro-phase-3a/2025-10-25/cost_revised Sat, 25 Oct 2025 00:00:00 GMT BMRCL Karnataka Cabinet approved a ₹2,920 crore cost reduction, bringing Phase 3A's estimated cost to ₹25,485 crore. Source: Nativeplanet (news). https://nammablr.vercel.app/projects/metro-phase-3 metro-phase-3/2025-09-04/sanctioned Thu, 04 Sep 2025 00:00:00 GMT BMRCL Karnataka Cabinet approved the ₹9,700 crore double-decker viaduct component covering both Phase 3 corridors. Source: The News Minute (news). https://nammablr.vercel.app/projects/yellow-line yellow-line/2025-08-10/section_opened Sun, 10 Aug 2025 00:00:00 GMT BMRCL Yellow Line (RV Road–Bommasandra) inaugurated by the Prime Minister; commercial operations began the following day, 2025-08-11. Source: Dainik Jagran (thedailyjagran.com) (news). https://nammablr.vercel.app/projects/metro-phase-3 metro-phase-3/2025-08-01/deadline_revised Fri, 01 Aug 2025 00:00:00 GMT BMRCL Completion deadline pushed to May 2031 — reported as a year later than originally planned — citing delays in inviting civil work tenders for the double-decker flyover design; cost reported up about 5%. (Publication date approximate — exact date not confirmed.) Source: Deccan Herald (news). https://nammablr.vercel.app/projects/metro-phase-3a metro-phase-3a/2024-12-01/sanctioned Sun, 01 Dec 2024 00:00:00 GMT BMRCL Karnataka Cabinet approved Phase 3A (Hebbal–Sarjapur, 36.59 km) at an estimated cost of ₹28,405 crore. (Exact day not confirmed — reported as "December 2024".) Source: Nativeplanet (news). https://nammablr.vercel.app/projects/green-line-ext-madavar green-line-ext-madavar/2024-11-07/section_opened Thu, 07 Nov 2024 00:00:00 GMT BMRCL Nagasandra–Madavar extension became operational. Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/cauvery-stage-5 cauvery-stage-5/2024-10-16/section_opened Wed, 16 Oct 2024 00:00:00 GMT BWSSB BWSSB commissioned Cauvery Stage V, bringing 775 MLD of additional water supply toward 110 villages within BBMP limits. Source: Citizen Matters (news). https://nammablr.vercel.app/projects/metro-phase-3 metro-phase-3/2024-08-16/sanctioned Fri, 16 Aug 2024 00:00:00 GMT BMRCL Union Cabinet approved Phase 3 — 44.65 km, 31 stations, comprising the Orange Line (JP Nagar 4th Phase–Kempapura) and Grey Line (Hosahalli–Kadabagere). Source: Construction World (news). https://nammablr.vercel.app/projects/bsrp bsrp/2023-12-15/sanctioned Fri, 15 Dec 2023 00:00:00 GMT K-RIDE KfW Development Bank signed a €500 million (₹4,552 crore) loan agreement, plus a €4.5 million grant, with K-RIDE to finance Corridors 1 and 3. Source: Urban Transport News (news). https://nammablr.vercel.app/projects/purple-line-ext-whitefield purple-line-ext-whitefield/2023-10-01/section_opened Sun, 01 Oct 2023 00:00:00 GMT BMRCL KR Pura–Whitefield section completed; the extension became fully operational (exact day not confirmed, month/year per The Metro Rail Guy). Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/purple-line-ext-mysore-road purple-line-ext-mysore-road/2023-10-01/section_opened Sun, 01 Oct 2023 00:00:00 GMT BMRCL Kengeri–Challaghatta section completed; the extension became fully operational (exact day not confirmed, month/year per The Metro Rail Guy). Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/blue-line-phase-2b blue-line-phase-2b/2023-03-21/awarded Tue, 21 Mar 2023 00:00:00 GMT BMRCL BMRCL awarded the ₹182.33 crore Airport Depot (Doddajala) civil works contract to a J Kumar Infraprojects–AIC Infrastructures joint venture. Source: Metro Rail News (news). https://nammablr.vercel.app/projects/purple-line-ext-whitefield purple-line-ext-whitefield/2023-03-01/section_opened Wed, 01 Mar 2023 00:00:00 GMT BMRCL Baiyyappanahalli–KR Pura section opened (exact day not confirmed, month/year per The Metro Rail Guy). Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/cauvery-stage-5 cauvery-stage-5/2022-03-31/sanctioned Thu, 31 Mar 2022 00:00:00 GMT BWSSB JICA signed a second ODA loan of JPY 37,068 million (reported as ≈₹2,391 crore) for Phase 3(II) water-supply and sewerage facilities. Source: Japan International Cooperation Agency (JICA) (agency report). https://nammablr.vercel.app/projects/peripheral-ring-road peripheral-ring-road/2022-02-09/sanctioned Wed, 09 Feb 2022 00:00:00 GMT BDA Karnataka Cabinet approved the Peripheral Ring Road project at an estimated cost of ₹21,091 crore under a 50-year build-operate-transfer concession. Source: Swarajya (news). https://nammablr.vercel.app/projects/peripheral-ring-road peripheral-ring-road/2021-10-26/stalled Tue, 26 Oct 2021 00:00:00 GMT BDA Supreme Court order recorded that of the 1,810 acres 18.5 guntas notified for PRR Part 1, only 3 acres 21 guntas had actually been taken possession of; the Court directed the state government to hand over notified government land to BDA and directed BDA to simultaneously pass awards and take possession of notified land. Source: Supreme Court of India (via Indian Kanoon) (agency report). https://nammablr.vercel.app/projects/purple-line-ext-mysore-road purple-line-ext-mysore-road/2021-08-01/section_opened Sun, 01 Aug 2021 00:00:00 GMT BMRCL Mysuru Road–Kengeri section opened (exact day not confirmed, month/year per The Metro Rail Guy). Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/pink-line pink-line/2021-07-16/bid_received Fri, 16 Jul 2021 00:00:00 GMT BMRCL GR Infraprojects emerged lowest bidder among three qualified firms for the remaining Reach 6 work, at ₹364.87 crore. Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/blue-line-phase-2a blue-line-phase-2a/2021-05-25/awarded Tue, 25 May 2021 00:00:00 GMT BMRCL BMRCL awarded both Phase 2A civil-works packages: ₹785.24 crore to Afcons Infrastructure (Package 1) and ₹623.55 crore to Shankaranarayana Constructions (Package 2). Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/pink-line pink-line/2021-02-04/stalled Thu, 04 Feb 2021 00:00:00 GMT BMRCL BMRCL terminated Simplex Infrastructures' ₹578.70 crore Reach 6 elevated-section contract citing poor progress — civil work had reached about 35-37% completion against a 27-month deadline that began in September 2017. Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/green-line-ext-silk-institute green-line-ext-silk-institute/2021-01-14/section_opened Thu, 14 Jan 2021 00:00:00 GMT BMRCL Yelachenahalli–Silk Institute extension inaugurated. Source: The Metro Rail Guy (news). https://nammablr.vercel.app/projects/bsrp bsrp/2020-10-01/sanctioned Thu, 01 Oct 2020 00:00:00 GMT K-RIDE Central Government approved BSRP construction at a reduced cost of ₹15,767 crore, down from an earlier ₹18,621 crore estimate, with coach procurement shifted to a PPP leasing model. Source: Swarajya (news). https://nammablr.vercel.app/projects/pink-line pink-line/2019-11-01/awarded Fri, 01 Nov 2019 00:00:00 GMT BMRCL ITD Cementation India was awarded the ₹1,771.25 crore underground civil works package covering Tannery Road, Venkateshpura, Arabic College and Nagawara stations (4.59 km). Source: NBM&CW (news). https://nammablr.vercel.app/projects/cauvery-stage-5 cauvery-stage-5/2018-01-24/sanctioned Wed, 24 Jan 2018 00:00:00 GMT BWSSB JICA signed the first ODA loan agreement (Phase 3(I): JPY 81,060 million, of which JPY 45,000 million as tranche 1) for what BWSSB calls Cauvery Water Supply Scheme Stage V. Source: Japan International Cooperation Agency (JICA) (agency report). https://nammablr.vercel.app/projects/metro-phase-1 metro-phase-1/2011-10-20/section_opened Thu, 20 Oct 2011 00:00:00 GMT BMRCL Reach 1 (6.7 km, Mahatma Gandhi Road–Baiyappanahalli) opened to the public — Namma Metro's first operational stretch. Source: The News Minute (news).