Mumbai, July 28 -- AVG Logistics Ltd, Brightcom Group Ltd, Dhampur Bio Organics Ltd and 20 Microns Ltd are among the other losers in the BSE's 'B' group today, 28 July 2025.Kellton Tech Solutions Ltd crashed 13.37% to Rs 27.85 at 14:31 IST.The stock was the biggest loser in the BSE's 'B' group.On the BSE, 17.47 lakh shares were traded on the counter so far as against the average daily volumes of 3.06 lakh shares in the past one month.AVG Logistics Ltd tumbled 10.08% to Rs 243.65. The stock was the second biggest loser in 'B' group.On the BSE, 14177 shares were traded on the counter so far as against the average daily volumes of 1664 shares in the past one month.Brightcom Group Ltd lost 9.97% to Rs 11.65. The stock was the third biggest lo...