New Delhi [India], August 11 (ANI): In the Rs 60,000 crore project to build six advanced conventional submarines, government-owned Mazagaon Dockyards Limited (MDL) has got an edge as it has cleared crucial trials in the programme. The Indian Navy had held trials for building six advanced submarines with sea-proven Air Independent Propulsion systems which can help the boats to remain underwater for at least two weeks without the need to resurface to charge batteries at regular smaller intervals. Mumbai-headquartered MDL and Larsen and Toubro are the two contenders in the project with German Thy…