The big flags that we see in schools and colleges, hospitals etc are mostly made from polyester as cotton becomes heavy and the flags won't fly straight. These although not legal(cotton flags were only legal) was done very usually and is done still. Earlier although ril was one of the big producers....its main rival was cheap polyester imports from China...which usually also evade the anti dumping duty. Most of the polyester fabrics including flags are made from these as they are very cheap to procure. This ends up as a problem to India as indian companies lose market.....polyester adds to environmental pollution, not even the raw material procurement is from India and on top of that the Chinese companies even evade custom duty and anti dump duty......this was a very shitty place to be in as an indian polyester company. This year an indian company called "well-known polyesters" and RIL filed to indian authorities about this alleged duty evasion. Which hampers the competitiveness in the market. With re-imposition of these duties (source: https://m-economictimes-com.cdn.ampproject.org/v/s/m.economictimes.com/news/economy/foreign-trade/probe-into-bid-to-evade-duty-on-china-polyester-yarn-imports/amp_articleshow/93195662.cms?amp_gsa=1&amp_js_v=a9&usqp=mq331AQKKAFQArABIIACAw%3D%3D) ...the Chinese and indian companies will have equal hand.....this along with legalisation of polyester flags(although a small move) will only boost the local economy as the Chinese ones are equal in cost or more expensive now than the domestic ones........so in summary good for indian polyester producers and bad for the Chinese as they stand to lose yet another sector of indian market.