An investigation by the Ministry of Environment and Forest has found that more than 70,000 were felled in the Sai Upwan, the only forest in Ghaziabad.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/70000-trees-cut-ghaziabads-lone-forest-says-ministry-report
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/deforestation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/trees
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/municipal-corporations
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ghaziabad-d