Mumbai, May 15 -- Mahalaxmi Fabric Mills Ltd, NRB Industrial Bearings Ltd, Hester Biosciences Ltd and Hybrid Financial Services Ltd are among the other gainers in the BSE's 'B' group today, 15 May 2026.Noida Toll Bridge Company Ltd surged 19.38% to Rs 4.99 at 12:02 IST. The stock was the biggest gainer in the BSE's 'B' group. On the BSE, 10.79 lakh shares were traded on the counter so far as against the average daily volumes of 20009 shares in the past one month. Mahalaxmi Fabric Mills Ltd soared 18.77% to Rs 28.98. The stock was the second biggest gainer in 'B' group. On the BSE, 200 shares were traded on the counter so far as against the average daily volumes of 313 shares in the past one month. NRB Industrial Bearings Ltd spiked 16.94%...