Mumbai, May 15 -- Nelcast Ltd, BCPL Railway Infrastructure Ltd, HCL Infosystems Ltd and Shiva Texyarn Ltd are among the other gainers in the BSE's 'B' group today, 15 May 2025.Intense Technologies Ltd spiked 20.00% to Rs 114 at 12:02 IST. The stock was the biggest gainer in the BSE's 'B' group. On the BSE, 69383 shares were traded on the counter so far as against the average daily volumes of 1556 shares in the past one month. Nelcast Ltd surged 19.99% to Rs 126.93. The stock was the second biggest gainer in 'B' group. On the BSE, 69531 shares were traded on the counter so far as against the average daily volumes of 5953 shares in the past one month. BCPL Railway Infrastructure Ltd soared 19.99% to Rs 99.1. The stock was the third biggest ...