Mumbai, May 12 -- Reliance Power Ltd, Cera Sanitaryware Ltd, Syrma SGS Technology Ltd and Paisalo Digital Ltd are among the other gainers in the BSE's 'A' group today, 12 May 2025.Birla Corporation Ltd spiked 20.00% to Rs 1270.25 at 11:46 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 1.05 lakh shares were traded on the counter so far as against the average daily volumes of 4530 shares in the past one month. Reliance Power Ltd surged 12.70% to Rs 43.56. The stock was the second biggest gainer in 'A' group. On the BSE, 168.28 lakh shares were traded on the counter so far as against the average daily volumes of 75.55 lakh shares in the past one month. Cera Sanitaryware Ltd soared 11.43% to Rs 6493.8. The stock was...