Mumbai, June 30 -- Jyoti CNC Automation Ltd, Karnataka Bank Ltd, Narayana Hrudayalaya Ltd and Home First Finance Company India Ltd are among the other losers in the BSE's 'A' group today, 30 June 2025.J B Chemicals & Pharmaceuticals Ltd tumbled 6.34% to Rs 1685.25 at 14:46 IST.The stock was the biggest loser in the BSE's 'A' group.On the BSE, 37658 shares were traded on the counter so far as against the average daily volumes of 3841 shares in the past one month.Jyoti CNC Automation Ltd crashed 5.75% to Rs 1059.75. The stock was the second biggest loser in 'A' group.On the BSE, 6.55 lakh shares were traded on the counter so far as against the average daily volumes of 13705 shares in the past one month.Karnataka Bank Ltd lost 5.15% to Rs 19...