Mumbai, July 31 -- Thermax Ltd, Aarti Industries Ltd, Hyundai Motor India Ltd, Aptus Value Housing Finance India Ltd are among the other stocks to see a surge in volumes on NSE today, 31 July 2026.Niva Bupa Health Insurance Company Ltd notched up volume of 172.74 lakh shares by 14:14 IST on NSE, a 24.25 fold spurt over two-week average daily volume of 7.12 lakh shares. The stock rose 2.46% to Rs.88.03. Volumes stood at 7.99 lakh shares in the last session.Thermax Ltd notched up volume of 30.69 lakh shares by 14:14 IST on NSE, a 20.97 fold spurt over two-week average daily volume of 1.46 lakh shares. The stock slipped 2.62% to Rs.4,140.00. Volumes stood at 1.2 lakh shares in the last session.Aarti Industries Ltd registered volume of 98.99 ...