Blue Line Metro Bengaluru: Route, Stations, Trial Run and Opening Date (2026)

Updated 11 November 2026: the Blue Line metro Bengaluru is in trial runs. Power is on along the line from Baiyappanahalli depot towards Marathahalli, and test trains are running towards KR Puram. BMRCL is aiming to run trial trains up to Marathahalli by 15 November. Passenger service on the first section, Central Silk Board to KR Puram, is expected around mid-2027; the line to the airport around March 2028. No official opening date has been announced.

The Blue Line is Namma Metro’s Outer Ring Road and airport line. It runs 58.19 km from Central Silk Board along the ORR through HSR Layout, Bellandur and Marathahalli to KR Puram, then north through Hebbal to Kempegowda International Airport, with 29 stations. This guide lists every station, what the trial run means, what is still pending, how you will change lines and how it changes the daily ORR commute. We update it every time BMRCL announces something.

Blue Line metro Bengaluru at a glance

	Blue Line
Route	Central Silk Board to KIAL Terminals (Kempegowda International Airport)
Length	58.19 km, 29 stations
Phase 2A (ORR line)	Central Silk Board to KR Puram: 19.75 km, 13 elevated stations
Phase 2B (Airport line)	KR Puram to KIAL Terminals: 38.44 km, 16 stations
Status today	Under construction. Trial runs on the KR Puram side; signalling still being integrated
Expected opening	Phase 2A around mid-2027; airport section around March 2028 (targets, not official dates)
Interchanges	Yellow Line at Central Silk Board, Purple Line at KR Puram, Pink Line at Nagawara (later)
Trains	Built by BEML; 750 V DC third-rail power; CBTC signalling by Alstom
Depots	Baiyappanahalli and Doddajala
Cost	₹14,788 crore for the 58 km line (approved April 2021)

Blue Line trial run: what is happening now

Since 30 October 2026 the 33 kV power cables and the third rail (the rail that carries power to the train) have been switched on in stages between Baiyappanahalli depot and Marathahalli. With power on, BMRCL has started running test trains out of the depot towards KR Puram and Doddanekundi. Engineers working on the line have shared videos of a Blue Line train arriving at an ORR station on its own power.

What comes next, in order:

• Trial trains to Marathahalli: BMRCL’s target is 15 November 2026.
• Signalling integration: the key hurdle. BMRCL says all works except signalling are complete on the first stretch.
• Remaining civil work: about 2 km of track, and stations at Marathahalli and Central Silk Board are still being finished.
• Speed and safety trials, then inspection by the Commissioner of Metro Railway Safety (CMRS). Only after CMRS approval can passenger service start.
• Opening: Phase 2A is expected around mid-2027. The trial may run in two segments, KR Puram to Marathahalli and Marathahalli to HSR Layout, and early service could skip Marathahalli and Silk Board until they are ready.

Blue Line metro Bengaluru stations: all 29

All Phase 2A stations are elevated, along the Outer Ring Road. Stations with a sponsor have a longer official name (shown in brackets). Every station is under construction.

#	Station	Phase	Type	Change to
1	Central Silk Board	2A	Elevated	Yellow Line (open)
2	HSR Layout	2A	Elevated	None
3	Agara	2A	Elevated	Red Line (approved)
4	Ibbaluru (InMobi Ibbaluru)	2A	Elevated	Red Line (approved)
5	Bellandur (Prestige Bellanduru)	2A	Elevated	None
6	Devarabeesanahalli (Embassy TechVillage)	2A	Elevated	None
7	Kadubeesanahalli	2A	Elevated	None
8	Marathahalli	2A	Elevated	None
9	ISRO	2A	Elevated	None
10	Doddanekundi	2A	Elevated	None
11	DRDO Sports Complex (Bagmane Developers)	2A	Elevated	None
12	Saraswathi Nagara	2A	Elevated	None
13	KR Puram (Krishnarajapura)	2A	Elevated	Purple Line (open), KR Puram railway station
14	Kasturi Nagar	2B	Elevated	Channasandra railway station
15	Horamavu	2B	Elevated	None
16	HRBR Layout	2B	Elevated	None
17	Kalyan Nagar	2B	Elevated	None
18	HBR Layout	2B	Elevated	None
19	Nagawara	2B	Elevated	Pink Line (underground, expected around 2027)
20	Veerannapalya	2B	Elevated	None
21	Kempapura	2B	Elevated	Orange Line (approved)
22	Hebbal	2B	Elevated	Orange and Red Lines (approved)
23	Kodigehalli	2B	Elevated	None
24	Jakkur Cross	2B	Elevated	None
25	Yelahanka	2B	Elevated	None
26	Bagalur Cross	2B	Elevated	None
27	Doddajala	2B	Elevated	None
28	Airport City	2B	At grade	None
29	KIAL Terminals	2B	Underground	Kempegowda International Airport

What the Blue Line changes for ORR commuters

The Outer Ring Road between Silk Board and KR Puram is Bengaluru’s tech corridor and one of its slowest roads. We checked it on Google Maps for a weekday at 9 AM: Central Silk Board to KR Puram by car is 16.8 km and takes 60 to 85 minutes. On the Blue Line it is 12 stops; at Namma Metro’s usual pace of about 2.5 minutes a stop, that is about 30 minutes (our estimate until BMRCL publishes running times).

Trip	Today	With the Blue Line (expected)
Central Silk Board to KR Puram	60–85 min by car at 9 AM (Google Maps)	About 30 min, no change
Hulimavu to Whitefield	99–160 min by car; 100 min by metro via the city centre with 3 changes	About 85 min: Pink, Yellow, Blue, Purple
Electronic City to Marathahalli	Long ORR drive through Silk Board	Yellow Line to Silk Board, change to the Blue Line
KR Puram to the Airport	Road via Hebbal	Direct on the Blue Line once Phase 2B opens (around 2028)

Honest gaps: the walkway between the Yellow Line and Blue Line stations at Silk Board is not expected before May 2027, so early riders may have to walk between the two. The airport section will take longer than the ORR section. Until then, the fastest metro route from south Bengaluru to Whitefield goes through the city centre: compare it on Plan Trip.

Blue Line metro Bengaluru fares (expected)

BMRCL has not announced Blue Line fares. Namma Metro charges by distance, and if the Blue Line follows the current slabs, Central Silk Board to KR Puram (12 stops) would cost about ₹60, and a trip of up to 2 stops ₹10. Airport fares may be set differently. Check any open-line fare on our metro fare calculator.

Changing lines on the Blue Line

• Central Silk Board: change to the Yellow Line (RV Road to Bommasandra via Electronic City). The two stations are separate; a travelator is planned.
• KR Puram: change to the Purple Line (Whitefield to Challaghatta via MG Road and Majestic), next to KR Puram railway station.
• Nagawara: change to the Pink Line (to MG Road, Jayadeva and Bannerghatta Road) once both lines reach it.
• Hebbal and Kempapura: planned interchanges with the approved Phase 3 Orange Line and the Red Line.
• See how changes work today in our interchange stations guide.

Blue Line metro Bengaluru timeline

• Sept 2016: Silk Board–KR Puram line announced as Phase 2A.
• March 2017: Karnataka cabinet approves Phase 2A.
• Jan 2019: Cabinet approves the 38 km airport line (Phase 2B) via Hebbal.
• April 2021: Centre approves the 58 km line at ₹14,788 crore.
• Aug 2021: Phase 2A construction begins; Feb 2022: Phase 2B begins.
• Aug 2023: BEML wins the train contract.
• June 2024: Third-rail power (Siemens–RVNL) and signalling (Alstom) contracts awarded.
• June 2026: Minister Krishna Byre Gowda sets October for trial runs.
• 30 Oct 2026: Power switched on in stages, Baiyappanahalli depot to Marathahalli.
• Nov 2026: Test trains run towards KR Puram; target: trains to Marathahalli by 15 November.
• Mid-2027 (expected): Phase 2A, Silk Board to KR Puram, opens.
• March 2028 (expected): Airport section opens.

For the other lines coming up, read the future of Bengaluru Metro and our Pink Line status page. See the whole network on the Namma Metro map.

Frequently asked questions

Sources: BMRCL updates reported by Swarajya (10 November and 19 August 2026) and Deccan Herald; station list, lengths and contracts from BMRCL tender data (via Wikipedia); car times from Google Maps for a weekday 9 AM, pulled 10 November 2026. Metro times and fares are our estimates until BMRCL publishes them. Last checked 11 November 2026.