Siemens has been awarded contracts for over Rs 250 crore by machinery suppliers - ThyssenKrupp Industries India, Larsen & Toubro Ltd and Man Takraf India - for providing electrical and automation turnkey solutions for Neyveli Lignite Corporation's Mines - II expansion project.According to a release issued by Siemens to the BSE today, the contracts are to be completed within a period of 34 months.