ADVERTISEMENTSpent Rs 500 Crore To Meet Environment Norms: Sterlite CopperSpent Rs 500 Crore To Meet Environment Norms: Sterlite Copper NDTV Profit23 May 2018, 11:48 AM IST 23 May 2018, 11:27 AM IST23 May 2018, 11:48 AM ISTWhatsAppX (was Twitter)FacebookTelegramSaveSpent Rs 500 Crore To Meet Environment Norms: Sterlite CopperADVERTISEMENT