Jishnu Ocean Technologies (JOT) is a proprietary concern based in Mumbai, set up by Mr. N.C. Ashok in 1986.

Mr. Ashok did his graduation from Calicut University, Kerala State. Later he studied Oceanography from Europe. He brings with him more than 30 years of Marine experience.

We have very good experience in carrying out Hydrographic / Bathymetric surveys, Environmental Impact surveys for port construction, marine outfall location, pre and post dredging surveys etc. We also carryout survey and mapping of rivers and provide digital navigation software for tracking of vessels movements for security and anti-piracy operations.

When Reliance Energy Ltd., one of Indias mega corporations, took over a big power utility in which we were working, they replaced every contractor except us. Some of our clients are retaining us continuously for more than 20 years. This shows the trust and respect we enjoy in the industry.

Expert Collaborators

We have a technical tie up with Hydrosupport of Germany for the Hydrographic surveying software WinProfile and Hydrographic surveying echo sounders. This low cost Survey Echosounder was jointly developed by us.

Hydrosupport is a leading Hydrographic Survey solution provider in Germany. Their service is used by German shipyards at the time of launching big luxury liners from the Shipyards which are situated much up streams of the river.

JOT team are capable to do a commendable job in converting an ordinary Offshore Supply Vessel into a full fledged Research Survey Vessel in a shortest possible time without taking it to drydock. This task was carried out under the expert guidance of highly decorated Flag Officer Commodore N.P. Mukundan. ( Retd. I.Navy) The first cruise of this vessel was flagged off by the then Director General of CSIR, Prof. P. Mitra. ( NIO and NEERI are CSIR Institutes ). Many similar cruises followed covering all ONGC offshore oil-fields in the west coast and East coast. During this period JOT was able to indigenously develop most of the Import Substitute equipments needed for the survey. ( Letter of appreciation signed by Dr. Sarin, Deputy Director of NEERI is given below ).

We are the most trusted Hydrographic survey company in India, mainly because while carrying out the Pre or Post Dredging Hydrographic surveys, we never worked hand in gloves with the dredging companies by certifying non existent extra Ghost Quantities and putting our clients into heavy loss. There are many cases where we were approached by major industries for a re-survey of the work done by others and they were shocked to find the huge variation in quantity in our survey and their surveys, We established very high ethical standards in our work, we have put checks and counter checks in place solely for the benefit of our clients.