Graviky, the company, however, says that their primary goal is to reduce air pollution through their trademarked product titled Kaalink
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/bengaluru-start-converts-air-pollution-usable-ink
[2] http://admin.indiaenvironmentportal.org.in/category/author/jayadev-calamur
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-bangalore
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangalore-t