Mumbai, Oct. 13 -- Gretex Corporate Services Ltd, Manaksia Coated Metals & Industries Ltd, Kirloskar Electric Company Ltd and Cambridge Technology Enterprises Ltd are among the other gainers in the BSE's 'B' group today, 13 October 2025.Umiya Buildcon Ltd surged 18.94% to Rs 100.8 at 12:02 IST. The stock was the biggest gainer in the BSE's 'B' group. On the BSE, 63189 shares were traded on the counter so far as against the average daily volumes of 12588 shares in the past one month. Gretex Corporate Services Ltd spiked 12.99% to Rs 260.15. The stock was the second biggest gainer in 'B' group. On the BSE, 48356 shares were traded on the counter so far as against the average daily volumes of 9594 shares in the past one month. Manaksia Coate...