ndian shares edged up on Monday, helped by gains in heavyweight information technology shares led by a rally in Tech Mahindra after the company named a new chief executive, while investors awaited inflation data due later in the day. The Nifty 50 index rose 0.6% to 17,519.05, while the S&P BSE Sensex gained 0.6% to 59,474.30, as of 09:25 a.m. IST.