The Defence Ministry has found the Indian firm Larsen and Toubro (L & T) bid non-compliant in the Rs 70,000 crore tender to acquire six submarines.The Indian Navy is looking to buy six advanced submarines with the ability to stay underwater for three weeks under Project 75 India.The proposal of the L & T in partnership with Spanish Navantia has been rejected by the Ministry for not being compliant with Indian Navy requirements, defence sources told ANI.The L & T and its partner had showcased the functioning of its critical Air Independent Propulsion system in Spain to the Indian Navy team there on shore but the Indian Navy demanded a sea-proven system in its requirements in the tender document.The latest development means that the state-owned Mazagaon Dockyards Limited along with its partner ThyssenKrupp Marine Systems of Germany would be the only vendor left in the race for making the six submarines.Vendors involved in the programme have been making representations to the