About Us

We are authorized sales, service and spares dealer for Greaves Power DG sets (5kVA TO 1250 kVA), based in Kolkata, West Bengal.

We also do Service / Maintenance of Multi Brand DG sets i.e. Cummins/ Mahindra/Eicher/ Kirloskar/ Leyland etc.

Unitrade International has been established in 1981 & associated with Greaves Cotton Limited since 1990. We are experts in DG sales, diesel generator / fire engine service, AMC of DG, engine repairing, spare parts and installation with erection and also specialize in offering PREOWNED DG SETS with warranty.

We are Authorised Dealer for Greaves Cotton Limited for Greaves DG sets which are technologically advanced Smart Gensets named ‘Greaves Genius’ which comes loaded with 5-year warranty on the full Genset. Greaves is the first and only company to offer 5 Year warranty on full genset without any extra cost and is available across range from 10kVA - 500 kVA.We also provide DG sets on Hire / Rental basis from 5 kVA to 1250 kVA and undertake Annual Maintenance Contract.

We also specialize in FIRE ENGINE repairing/maintenance/ spares and are registered vendors of BPCL/IOCL/HPCL.


Why Choose Us

• Work Experience of more than 35 years.
• Single window product support encompassing Sales, Service, AMC and Spare Parts.
• We are reliable for our customers and always keeps time commitments.
• We are easy to work with – We are just a call away for any support including Installation / Shifting.
• We are having all range of silent DG sets on wheels for emergency power back up to keep your company operations on 24 x 7.

[Our Clients]


Mr. Siddharth Basu (Electrical Engineer) KPC Medical College, Jadavpur, Kolkata.

Authorized Dealer of Sales, Services and spare parts of Greaves Power DG set. They Supply genuine spare parts of Greaves for repairing purpose. Their rates are competitive in the market and we are satisfied with their rate. They maintained the AMC schedule properly. Fast response from Unitrade International Team.

Mr. Atanu Bhadra (Officer Administration) EXIDE Industries Ltd., Kolkata.

Very Client Friendly Company. Prompt response against complain. Good Technicians and very quickly diagnose the problem and solve it. Rates are affordable. We are very satisfying with their service.

Mr. Niladri Shaker Kabasa (Executive Maintenance) G.D. Hospital, Kolkata

Very good client support. Fast and Prompt delivery of spare parts. Genuine and quality spare parts supplier. Response time is very fast. Problem detection and their ability to resolve the problem is very good.

Mr. Ranjan Chakraborty (Senior Manager-Electrical) Shrachi Group, Kolkata

Unitrade Team is very good and they work hard and solve our problem. They are truly looking out for customer’s best interest. We recommend every one for DG Service, AMC and Spare Parts.