Mumbai, Sept. 18 -- Cohance Lifesciences Ltd, Sonata Software Ltd, HFCL Ltd, Newgen Software Technologies Ltd are among the other stocks to see a surge in volumes on BSE today, 18 September 2025.Poonawalla Fincorp Ltd saw volume of 29.04 lakh shares by 10:47 IST on BSE, a 73.06 fold spurt over two-week average daily volume of 39757 shares. The stock increased 13.82% to Rs.509.55. Volumes stood at 84341 shares in the last session.Cohance Lifesciences Ltd saw volume of 7.71 lakh shares by 10:47 IST on BSE, a 32.85 fold spurt over two-week average daily volume of 23474 shares. The stock dropped 5.45% to Rs.915.00. Volumes stood at 3652 shares in the last session.Sonata Software Ltd clocked volume of 6.19 lakh shares by 10:47 IST on BSE, a 9....