Sigma Infrarop
{{#badges: CoalSwarm|Navbar-Indiacoal}}Sigma Infrarop is an Indian company which has proposed the 2640 megawatt coal-fired Sigma Infrarop power station (Khamman). The project is noted by the Ministry of Coal as being proposed to be built in the Khamman district, Andhra Pradesh.<ref>Ministry of Coal, "PENDING APPLICATION OF SEBs UPTO 31ST JULY,2011", Ministry of Coal, August 2011.
Sigma Infrarop has no website and there is little available information about the company or the project on the internet.
