Sensex falls 400 points, Nifty down at 17,536
The Sensex and Nifty opened in the red on Tuesday for a second straight session, ahead of domestic and US inflation data due later in the day. Investors are focusing on the earnings season for cues on the impact of a price surge on companies. The NSE Nifty 50 index was down 0.78 per cent or 138.25 points at 17,536.70,…