The Indian equity benchmarks edged lower on Thursday ahead of weekly expiry of index futures and option contracts due later in the day dragged by losses index heavyweights like Infosys, Reliance Industries, HDFC, ICICI Bank, Tata Consultancy Services, Asian Paints and HCL Technologies. However, the losses were capped on the back of buying interest in Bajaj Finance, Power Grid, Axis Bank, HDFC Bank and Bharti Airtel.