Greaves Sails Through Three Major Changes: In the past 9 months, market went through three major changes; Demonetisation in November 2016 impacted volumes significantly and market creeped through gradually to switch by auto makers from BS-III to BS-IV emission norms beginning April 2017 which ushered in price hike in the range of 8.0%-10.0%; and with the introduction of GST, beginning July 2017 volumes were further depressed.