D. Padmalal, senior scientist attached to Centre for Earth Science Studies, says the mud banks in river Pampa are nothing but parts of the original riverbed and not any fresh deposit.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/expert-blames-it-years-sand-mining
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-thiruvananthapuram
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kerala
[4] http://admin.indiaenvironmentportal.org.in/thesaurus/sand-mining
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecosystems
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/riverine-ecology