Mumbai, May 25 -- Innovana Thinklabs Ltd, Excelsoft Technologies Ltd, Satia Industries Ltd and Prostarm Info Systems Ltd are among the other losers in the BSE's 'B' group today, 25 May 2026.Sanstar Ltd lost 10.65% to Rs 104.16 at 14:31 IST.The stock was the biggest loser in the BSE's 'B' group.On the BSE, 1.37 lakh shares were traded on the counter so far as against the average daily volumes of 30880 shares in the past one month.Innovana Thinklabs Ltd tumbled 8.90% to Rs 355.3. The stock was the second biggest loser in 'B' group.On the BSE, 2610 shares were traded on the counter so far as against the average daily volumes of 4501 shares in the past one month.Excelsoft Technologies Ltd crashed 8.83% to Rs 89.81. The stock was the third big...