New replacements are non-woven bags, net bags, bags made out of newspapers
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ban-plastic-prices-alternatives-polythene-shoot
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-chandigarh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/plastics
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chandigarh
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/non-biodegradable-waste
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution
[8] http://admin.indiaenvironmentportal.org.in/thesaurus/national-green-tribunal-ngt
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment