Shriram EPC Ltd, IMP Powers Ltd, Premier Polyfilm Ltd and Indo Rama Synthetics (India) Ltd are among the other losers in the BSE's 'B' group today, 20 May 2021. Shriram EPC Ltd, IMP Powers Ltd, Premier Polyfilm Ltd and Indo Rama Synthetics (India) Ltd are among the other losers in the BSE's 'B' group today, 20 May 2021. TD Power Systems Ltd tumbled 10.33% to Rs 197.4 at 14:34 IST.The stock was the biggest loser in the BSE's 'B' group.On the BSE, 16450 shares were traded on the counter so far as against the average daily volumes of 12421 shares in the past one month. Shriram EPC Ltd crashed 9.86% to Rs 5.12. The stock was the second biggest loser in 'B' group.On the BSE, 5.86 lakh shares were traded on the counter so far as against the average daily volumes of 1.97 lakh shares in the past one month.