Mumbai, June 2 -- Niva Bupa Health Insurance Company Ltd, Ucal Ltd, Ratnaveer Precision Engineering Ltd and Nectar Lifescience Ltd are among the other losers in the BSE's 'B' group today, 02 June 2025.Somi Conveyor Beltings Ltd lost 10.63% to Rs 161.85 at 14:31 IST.The stock was the biggest loser in the BSE's 'B' group.On the BSE, 32714 shares were traded on the counter so far as against the average daily volumes of 4167 shares in the past one month.Niva Bupa Health Insurance Company Ltd tumbled 9.68% to Rs 83.35. The stock was the second biggest loser in 'B' group.On the BSE, 2344.5 lakh shares were traded on the counter so far as against the average daily volumes of 6.78 lakh shares in the past one month.Ucal Ltd crashed 8.79% to Rs 150...