The Indian equity benchmarks were trading in a rangebound manner with a flat bias on Friday as gains in NTPC, HDFC Bank, Kotak Mahindra Bank, Power Grid and Tata Steel were offset with losses in Infosys, ICICI Bank, Titan, HCL Technologies and ITC. The Sensex traded in a band of 235 points and Nifty 50 index touched an intraday high of 17,499.95 and low of 17,422.70 amid weak global cues.