Mumbai, May 12 -- Central Mine Planning & Design Institute Ltd, Sasken Technologies Ltd, Satin Creditcare Network Ltd and Jindal Drilling & Industries Ltd are among the other gainers in the BSE's 'B' group today, 12 May 2026.Butterfly Gandhimathi Appliances Ltd soared 13.29% to Rs 704.5 at 12:02 IST. The stock was the biggest gainer in the BSE's 'B' group. On the BSE, 1.42 lakh shares were traded on the counter so far as against the average daily volumes of 1232 shares in the past one month. Central Mine Planning & Design Institute Ltd spiked 9.90% to Rs 236. The stock was the second biggest gainer in 'B' group. On the BSE, 13.28 lakh shares were traded on the counter so far as against the average daily volumes of 3.68 lakh shares in the ...