Mumbai, Aug. 12 -- Banco Products (India) Ltd, Astral Ltd, Praj Industries Ltd and Action Construction Equipment Ltd are among the other losers in the BSE's 'A' group today, 12 August 2025.Marksans Pharma Ltd lost 10.37% to Rs 188 at 14:45 IST.The stock was the biggest loser in the BSE's 'A' group.On the BSE, 4.46 lakh shares were traded on the counter so far as against the average daily volumes of 7.51 lakh shares in the past one month.Banco Products (India) Ltd crashed 9.84% to Rs 542.25. The stock was the second biggest loser in 'A' group.On the BSE, 96406 shares were traded on the counter so far as against the average daily volumes of 28507 shares in the past one month.Astral Ltd tumbled 8.29% to Rs 1267.7. The stock was the third big...