Mumbai, Sept. 17 -- Gujarat Narmada Valley Fertilizers & Chemicals Ltd, Yatharth Hospital & Trauma Care Services Ltd, Tega Industries Ltd and HBL Engineering Ltd are among the other gainers in the BSE's 'A' group today, 17 September 2026.Syrma SGS Technology Ltd soared 8.96% to Rs 1646 at 11:45 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 2.91 lakh shares were traded on the counter so far as against the average daily volumes of 1.39 lakh shares in the past one month. Gujarat Narmada Valley Fertilizers & Chemicals Ltd surged 8.73% to Rs 587.3. The stock was the second biggest gainer in 'A' group. On the BSE, 2.5 lakh shares were traded on the counter so far as against the average daily volumes of 41657 shares i...