Worldwide, there are only five global recyclers which extract precious metals from e-waste material.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/start-namo-e-waste-%E2%80%93-extracting-precious-metals-e-waste
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electronic-waste
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-metals
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-recycling
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hazardous-waste