The star system in question is none other than Gliese 581, where a earthlike planet was reccently found. Bhathal has only detected this signal once, while it has been verified by a signal processing specialist to be a real signal, it has not been seen again. Bhathal has a strong case for his decision searching around the visible spectrum, something like a laser may stand out as almost unambiguously artificial. He may have indeed found just that.
In this article from '09 they specifically mention the planet's name, Gliese 581e. They claim this 'e' planet was too close to its sun to be habitable. http://www.theaustralian.com.au/news...-1225710664198
This recently discovered 'goldilocks' planet is Gliese 581g. Same fracking solar system!