Hero MotoCorp is set to announce results for the December quarter of FY21 (Q3FY21) on Thursday, with analysts expecting the two-wheeler major to report an over 35 per cent year-on-year (YoY) growth in revenues while net profit is seen rising around 11 per cent, led by increase in volumes and average selling prices. On the other hand, gross margins may decline on input cost pressure, they said. According to the monthly sales data, the company sold 18.45 lakh units in the quarter under review, up 19.8 per cent from the 15.40 lakh units sold in the year-ago quarter. It had recorded 18.14 lakh sales in Q2FY21.