Indian Navy has begun its exercise to identify a contemporary conventional submarine under its Project 75 (I) program. The information sheet called for construction of two submarines at collaborators shipyard and four submarines at two Indian shipyards.

Indian Navy has requested information from firms who have independently designed and constructed a complete modern conventional submarine which is currently in service or undergoing sea trials. The submarine should be capable of operating in open ocean and littoral and shallow waters in dense ASW and EW environment and able to undertake missions for anti surface and anti submarine warfare; supporting operations ashore; ISR Missions; and special force and mining ops.

Some of the key requirements include torpedo tubes with capability to launch long range heavy weight wire guided torpedoes, missiles and method for weapon discharge; externally launched torpedo decoy system; integrated combat system; contemporary low noise propulsion and power generation system; and AC system customized for operation in tropical waters characterised by high temperature and high humidity conditions.

Information is also being asked for radiated noise levels in frequency band 30 hz to 10000hz (db // ref μpa) at speed of 5 knots and 10 kn (b) noise and vibration data for major propulsion and auxiliary machinery and also maneuverability & stability characteristics

Manufacturer has to to submit the information with scope and depth for transfer of technology (ToT) for submarine design & construction and production of key systems and subsystems at Indian shipyard by Indian industry. The participating supplier has to adhere to offset commitments regarding “Defense procurement procedure – 2008″ as well as the plan for training Indian navy personnel on all aspects of the submarine. The last date of the submission is 30th September 2010.