Chennai is not an offshore oil city in the way Mumbai is, and that shapes who writes to us. The people here are seafarers and marine engineers who want to cross into offshore support vessels, young graduates from the city's maritime institutes building a first offshore CV, shore-side workers at the ports and the refinery who are being asked for a survival certificate, and Tamil Nadu candidates pursuing rig and platform jobs on either coast.
The industrial base is real, though. Chennai Port and its subsidiary Kamarajar Port at Ennore together handled 103.37 million tonnes in 2024-25, crossing 100 million for the first time. At Kattupalli, north of the city, L&T runs a shipyard and a modular fabrication facility that it describes as serving the Krishna-Godavari offshore basin, building jackets, topsides and subsea structures.
Further south, the Cauvery basin's gas and oil activity is run from Karaikal in the Union Territory of Puducherry, where ONGC's Cauvery Asset is based. The basin's production is largely onshore, so most of the safety conversation there is about H2S, permit to work and fire, with offshore survival entering for people who rotate to other assets or to vessels. CPCL's Manali refinery, listed by its parent IndianOil at 10.5 million tonnes a year, adds a large process-industry workforce whose contractors are more often asked for fire, first aid and hazardous-materials certificates than for BOSIET.
HACCP is also among the most searched topics from Chennai, so catering and hospitality staff heading for marine roles will find it listed with the OPITO courses.
Combined throughput passed 100 million tonnes in 2024-25; Kamarajar is mainly dry bulk and Chennai Port mainly containers.
Builds offshore jackets, topsides and subsea modules as well as naval vessels; L&T signed MoUs with Ulstein and DNV for the yard in April 2026.
Listed by IndianOil at 10.5 MMTPA; the small Cauvery Basin Refinery at Nagapattinam was decommissioned in 2019 and a larger complex is planned there.
Regional hub for gas and oil produced mainly onshore in the Cauvery basin, between Puducherry and Ramnad.
East Coast Road campus on about 20 acres with nautical science and marine engineering programmes; HIMT and AMET are other large maritime institutes in and around the city.
OPITO code: 5700
Duration: 3 Days
Fee: ₹35,000
Searches from Chennai for BOSIET outnumber those for any other offshore course. It is the standard, cold-water version, so it suits seafarers and engineers who may also look at international or North Sea contracts.
View course →OPITO code: 5501
Duration: 3 Days
Fee: ₹35,000
The tropical version for warm-water regions, and the one most east-coast and Indian-waters operators accept. Three days, the same fee as BOSIET, and the usual choice for Bay of Bengal, Cauvery and KG-basin work.
View course →OPITO code: 5507
Duration: 1 Day (online + practical)
Fee: ₹35,000
Online theory followed by one practical day at the campus. For someone taking the morning flight in and the evening flight out, or sleeping one night in Kochi, this is how a three-day course becomes a single trip.
View course →Duration: Half Day
Fee: ₹10,000
First Aid is the non-OPITO course people in Chennai look for most. It is a half-day course that can be paired with the OPITO certificate on the same trip.
View course →Duration: Half Day
Searched for by galley and catering staff and by contractors in the ship-supply and hospitality trade in Chennai. Confirm the duration and fee with our team when you enquire.
View course →Training here is bought by marine and offshore contractors, fabrication yards, ship managers and manning agencies, port-based service companies and refinery contractors. Safety teams often handle crews that are scattered between Chennai, Ennore, Kattupalli and the Cauvery sites, so one booking may cover people with very different certificate needs.
| Course | Requirement note |
|---|---|
| Tropical Basic Offshore Safety Induction and Emergency Training (T-BOSIET) | Many operators and contractors working in warm Indian waters ask offshore personnel for the tropical certificate. Confirm with the client contract. |
| Basic Offshore Safety Induction and Emergency Training with EBS (BOSIET with EBS) | Standard BOSIET is often requested where crew may be redeployed to international or cold-water assets. The operator or client sets the rule, so check the scope of work. |
| Tropical Basic Offshore Safety Induction and Emergency Training (Digital Delivery) | Useful for employers who want to limit time away from site; online theory is completed first and the practical day is booked separately. |
| Basic First Aid Training | Commonly asked of supervisors and nominated first-aiders at yards, terminals and refineries. |
| HACCP Hazard Analysis and Critical Control Points Training | Relevant to catering contractors serving ships, camps and accommodation vessels; confirm what the client contract asks for. |
Operators and clients set their own requirements; confirm with your contract or HSE department.
Chennai is one of the easiest cities to reach us from. IndiGo flies non-stop between Chennai and Cochin International Airport on several departures a day, and two overnight trains from Chennai Central call at Coimbatore and Palakkad before reaching Ernakulam.
IndiGo's published timetable shows about five non-stop flights a day, scheduled at roughly 1 hour 10 to 1 hour 20 minutes. The first leaves around 8:00 in the morning, the last around 9:40 at night. Cochin airport is about 35 to 45 km from Njarakkal depending on the route and traffic. Check the current timetable before booking.
Leaves Chennai Central at 20:55 and reaches Ernakulam Junction at 08:40, about 11 hours 45 minutes, with stops at Katpadi, Salem, Erode, Coimbatore and Palakkad. It ends at the Junction, the closest main station to Njarakkal.
Leaves Chennai Central at 19:30 and reaches Ernakulam Town at 06:25. It also stops at Coimbatore and Palakkad, so candidates from Coimbatore can board it there. Confirm the stop and timings on the railway enquiry service before travelling.
NH 44 to Salem and then NH 544 through Coimbatore and Palakkad to Kochi. It is roughly 700 km and a long day behind the wheel, so it only makes sense for a group sharing a vehicle.
Ask the employer or manning agent whether the job sits in tropical waters (T-BOSIET) or needs the standard BOSIET. Seafarers from Chennai who are not yet attached to a contract can ask our team which of the two is more widely accepted in the sector they are aiming for.
Collect a valid photo ID, and if you hold an earlier OPITO certificate, bring that too so the renewal is recorded correctly.
The standard routes take three days at the campus. T-BOSIET Digital Delivery does the theory online and leaves a single practical day in the pool and fire ground. If you are travelling from Chennai and want a one-night trip, ask for the digital route.
Batches run regularly, so check upcoming dates with our team before buying tickets. The morning flight from Chennai gets you to the campus the same day; the overnight train gets you in at breakfast.
Bring swimwear, a towel, comfortable clothing and a valid photo ID. If you wear spectacles, bring a retaining strap, and declare any medication at the start.
OPITO certificates are valid for four years and Basic H2S for two. Put the expiry in your phone before you leave; the next renewal is easier to book when your dates are known.
