Mumbai, June 16 -- Rain Industries Ltd, PTC Industries Ltd, National Aluminium Company Ltd and Lumax Auto Technologies Ltd are among the other losers in the BSE's 'A' group today, 16 June 2026.General Insurance Corporation of India lost 8.14% to Rs 356.75 at 14:47 IST.The stock was the biggest loser in the BSE's 'A' group.On the BSE, 3.77 lakh shares were traded on the counter so far as against the average daily volumes of 20364 shares in the past one month.Rain Industries Ltd tumbled 6.43% to Rs 194.35. The stock was the second biggest loser in 'A' group.On the BSE, 3.31 lakh shares were traded on the counter so far as against the average daily volumes of 2.83 lakh shares in the past one month.PTC Industries Ltd crashed 4.70% to Rs 17770...