Mumbai, Feb. 14 -- Senco Gold Ltd, Deepak Nitrite Ltd, MSTC Ltd and Orchid Pharma Ltd are among the other losers in the BSE's 'A' group today, 14 February 2025.Concord Biotech Ltd lost 20.00% to Rs 1688 at 14:48 IST.The stock was the biggest loser in the BSE's 'A' group.On the BSE, 47914 shares were traded on the counter so far as against the average daily volumes of 4439 shares in the past one month.Senco Gold Ltd crashed 19.99% to Rs 357.6. The stock was the second biggest loser in 'A' group.On the BSE, 1.77 lakh shares were traded on the counter so far as against the average daily volumes of 41073 shares in the past one month.Deepak Nitrite Ltd tumbled 14.60% to Rs 1910.2. The stock was the third biggest loser in 'A' group.On the BSE, ...