Sensex, Nifty sustain upward trend; proposed GST reforms lift auto and consumer durable stocks

Maruti, Nestle India, Hero Motocorp, Bajaj Finance and M&M led the gainers with 5-8% increase, while L&T, Dr Reddys Laboratories, Infosys, Tech Mahindra and HCL Tech declined about 1% emerging as major laggards