Mumbai, Dec. 31 -- Mangalore Refinery And Petrochemicals Ltd, Graphite India Ltd, HEG Ltd, Gujarat Gas Ltd are among the other stocks to see a surge in volumes on NSE today, 31 December 2025.Deepak Fertilisers & Petrochemicals Corp Ltd registered volume of 28.01 lakh shares by 14:14 IST on NSE, a 16.1 fold spurt over two-week average daily volume of 1.74 lakh shares. The stock rose 6.54% to Rs.1,288.10. Volumes stood at 4.04 lakh shares in the last session.Mangalore Refinery And Petrochemicals Ltd registered volume of 312.16 lakh shares by 14:14 IST on NSE, a 15.91 fold spurt over two-week average daily volume of 19.62 lakh shares. The stock rose 11.21% to Rs.157.65. Volumes stood at 15.44 lakh shares in the last session.Graphite India Lt...