Latest undersea tunnel Tenders | Government undersea tunnel Tenders

Central Government/Public Sector

CTN :44332122

31 Mar, 2026 NA

Bangalore - Karnataka

Tender For 1)sbc-tk-spgr section- proposed construction of rob at lc.no50 @km:85/700-800 42m composite girder 2)proposed construction of rub at lc gate no.48 @km 81/500-600 between mallasandra and gubbi stations in aden/ypr sub division 3)sbc-tk-spgr section-proposed limited height subway at old lc43 (rub n0.297 b at km:73/000-100 near bheemasandra - rcc box of size 1x5x2.25 by rolling/ launching method 4)ypr-spgr section-proposed subway at old shettyhalli gate km 67/700-800 neat shettyhalli- (bridge no.308-d) rcc box of size 1x4x2.25 by rolling/launching method 5)provision of lifts at gbd railway station for pf-1 & pf-2&3 6)provision of two escalators (down direction) at pf-1 & pf-2&3 of kengeri railway station (pid: 14.01.53.25.3.50.008) 7)jtj-sbcsection- proposed pedestrian subways to facilitate crossing of railway alignment by cattle, pedestrians and smaller vehicles in various locations as rcc box of size 1x5mx2.65m (barrel length = 18.36 mtrs) by rolling/launching method 8)sbc-spgr section- proposed pedestrian subways to facilitate crossing of railway alignment by cattle, pedestrians and smaller vehicles in various locations as rcc box of size 1x5mx2.65m (barrel length = 18.36 mtrs) by rolling/launching method (total 11 nos) 9)ypr-ynk section- proposed pedestrain subway at sahakara nagara at km 13/200-300 near nti layout- rcc box of size 1x4x2.25 by rolling/launching method in aden/ypr sub-division 10)provision of dg sets at running rooms and crew rest rooms over sbc division 11)improvement of illumination in tunnel (600m length) near tasa at km 42/750 - 43/350

CTN :44291666

24 Mar, 2026 NA

Multi City - Multi State

Tender For supply, transportation, erection, testing and commissioning of dry type transformers of various capacity inside tunnel in the projects being executed by konkan railway corporation limited.

CTN :44291744

25 Mar, 2026 NA

Kolkata - West Bengal

Tender For execution of civil engineering works for colouring after necessary repairing inside the underground rcc box tunnel from dumdum to tollygunge along with painting of dispersals, fire hydrant pipe line and other allied works of metro railway, kolkata.

Central Government And Public Sector

CTN :44293838

09 Mar, 2026 NA

Bongaigaon - Assam

Tender For supply & customized development and deploy of web-based cyber threat management system (ctms) for c&w workshop n.f.railway, new bongaigaon aws cloud based al storage 1tb upto 1000 gb elastic data synchronize with xamp-local host server with aws web server connectivity for 12 (mos) an integrated framework of processes, and technology used to continuously identify threat, analyze threat, prioritize end point security, and mitigate threats that could compromise an organization's digital environment connectivity tunnel data push up to ctc server raspberry pi model sa motherboard with dell xgs server intel 15 with dedicated server with bu rack with 16 port channel cisco network firewall end point security measure detaction hardware are configure with aes encryption along with connected with firewall xgs 108 hwdgl & hardware accessories included make yzakun pvt. ltd, msc it solution, tetralum pvt. ltd.

CTN :44217599

31 Mar, 2026 NA

Pernem - Goa

Tender For detailed design consultancy (ddc) and site services / supervision - (i) for the construction of two new tunnels - one parallel to the existing 544 m long old goa tunnel, and the other parallel to the existing 1561 m long pernem tunnel and also (ii) for the rehabilitation of the existing old goa and pernem tunnels on the konkan railway route, in the state of goa, india.

CTN :43722629

31 Mar, 2026 NA

Pernem - Goa

Tender For corrigendum : detailed design consultancy (ddc) and site services / supervision - (i) for the construction of two new tunnels - one parallel to the existing 544 m long old goa tunnel, and the other parallel to the existing 1561 m long pernem tunnel and also (ii) for the rehabilitation of the existing old goa and pernem tunnels on the konkan railway route, in the state of goa, india.

CTN :44179811

11 Mar, 2026 NA

Kolkata - West Bengal

Tender For design, supply, erection, testing and commissioning of ecs and tvs for 4 underground metro stations including tunnel in joka-esplanade corridor of metro railway, kolkata (west bengal), india

CTN :44098344

17 Mar, 2026 NA

Barasat - West Bengal

Tender For appointment of authority engineer for providing project management services for "design, procurement & construction of rcc box metro tunnel including birati ug station building & subways (with entry-exit structures) for two underground metro stations (birati & michael nagar) by cut & cover method (top down with diaphragm wall/ bottom up method with support arrangement) including architectural finishing, firefighting, water supply, sanitary installation, drainage & blt works, e&m service, ecs service, tvs services, power supply system with 750 v dc traction system including composite aluminium third rail, from ch: 6.250 km to ch: 9.840 km including all ancillary works in connection with extension of metro railway from noapara to barasat via bimanbandar-tender no. epc-2489-2024".

Central Government / Public Sector

CTN :43971346

13 Apr, 2026 NA

Gunupur - Odisha

Tender For gunupur- theruvali new bg line project :design and construction of new bg railway line from km 88.400 ( take off from existing naupada- gunupur line) to km 122.75 (excluding important bridge 301 from km 90.680 to km 91.700 , major br. 361 from km 120.940 to km 121.180 & tunnel t-1 from km 110.020 to km 113.120) involving earthwork in formation in embankment/ cutting, blanketing, side drains, catch water drains, minor bridges, major bridge, road over bridge (robs), road under bridge (rubs), protection works, p.way track works with contractor's own material supplies including supply of track ballast, new wide based psc sleeper, special psc sleepers (for turnouts, improvised sejs, guard rails etc.), point (thick web switches & wcms crossing, glued joints, h-beam/ composite sleepers over girder bridges, improvised sejs, all p-way fittings, ohe foundations, supply and erection of ohe masts, provision of 1x25 kv conventional type ohe (ohe-41tkm) including 1km rocs in tunnel, provision of 1x25 kv sub-sectioning & paralleling post sp & ssp, modifications/conversion to underground for overhead electrical ht/lt power line crossings, construction of platforms, station buildings, fob, service buildings, sp/ssp buildings and residential buildings, water supply, indoor and outdoor electrification works etc. in waltair division of east coast railway on epc mode.

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