Domestic equity benchmarks opened on a cautious note on Thursday as voting began in 91 constituencies across the country in the first phase of Lok Sabha election.

The BSE Sensex was trading 33.29 points or 0.09 per cent higher at 38,618.64. The gauge had ended 353.87 points, or 0.91 per cent, lower to close at 38,585.35 in its previous session.Market mood was cautious as polling began in 91 constituencies spread across 18 states and two union territories in the first phase of Lok Sabha election, traders said.

Top gainers in the Sensex pack include Bharti Airtel, Asian Paints, M&M, HUL, Bajaj Auto, HDFC, Coal India, L&T, ITC and HDFC Bank, rising up to 1.85 per cent.While Vedanta, Kotak Bank, Sun Pharma Infosys, Yes Bank, IndusInd Bank, SBI and Axis Bank were the top losers, shedding up to 1.75 per cent.

However, Vinod Nair, Head of Research, Geojit Financial Services, said, “Election-led consolidation may be short-lived and the key trigger will be the earnings growth which is expected to start revive from fourth quarter onwards. ”Meanwhile, foreign institutional investors purchased equity worth Rs 1,429.92 crore on Tuesday, while domestic institutional investors sold equities of Rs 461.29 crore, provisional data available with stock exchanges showed.