Larsen & Toubro has secured a significant order from Noida Metro Rail Corporation to design and construct parts of the 15.1-km Aqua Line extension, including 10 elevated stations. The project is expected to improve connectivity across Noida and Greater Noida. Engineering and construction conglomerate Larsen & Toubro (L&T) said on Monday that it had secured a 'significant' order from the Noida Metro Rail Corporation. The contract involves the construction of a 15.