Flyash, considered to be an environmental hazard, is now being used for construction works in a major way. Ballarpur Industries Limited (BILT) , the flagship company of the Thapar group, is
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ballarpur-makes-buildings-flyash
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment