Mumbai, Nov. 18 -- Gujarat Ambuja Exports Ltd, GMR Airports Ltd, GMR Power & Urban Infra Ltd and Atul Ltd are among the other gainers in the BSE's 'A' group today, 18 November 2025.Bombay Burmah Trading Corporation Ltd spiked 8.08% to Rs 1990.7 at 11:46 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 54370 shares were traded on the counter so far as against the average daily volumes of 6208 shares in the past one month. Gujarat Ambuja Exports Ltd surged 4.84% to Rs 108.3. The stock was the second biggest gainer in 'A' group. On the BSE, 61945 shares were traded on the counter so far as against the average daily volumes of 38030 shares in the past one month. GMR Airports Ltd soared 4.49% to Rs 102.09. The stock wa...