Mumbai, June 19 -- GTPL Hathway Ltd, Aeroflex Industries Ltd, Sat Industries Ltd and Onelife Capital Advisors Ltd are among the other gainers in the BSE's 'B' group today, 19 June 2025.Softtech Engineers Ltd soared 19.99% to Rs 383.25 at 11:58 IST. The stock was the biggest gainer in the BSE's 'B' group. On the BSE, 2753 shares were traded on the counter so far as against the average daily volumes of 1666 shares in the past one month. GTPL Hathway Ltd spiked 14.59% to Rs 128. The stock was the second biggest gainer in 'B' group. On the BSE, 86156 shares were traded on the counter so far as against the average daily volumes of 5542 shares in the past one month. Aeroflex Industries Ltd surged 13.70% to Rs 198.8. The stock was the third bigg...