Mumbai, Dec. 29 -- Indian Railway Finance Corporation Ltd, Rail Vikas Nigam Ltd, Kirloskar Oil Engines Ltd and PC Jeweller Ltd are among the other losers in the BSE's 'A' group today, 29 December 2025.KNR Constructions Ltd crashed 5.82% to Rs 168.3 at 14:46 IST.The stock was the biggest loser in the BSE's 'A' group.On the BSE, 1.59 lakh shares were traded on the counter so far as against the average daily volumes of 1.58 lakh shares in the past one month.Indian Railway Finance Corporation Ltd tumbled 5.09% to Rs 126.7. The stock was the second biggest loser in 'A' group.On the BSE, 44.21 lakh shares were traded on the counter so far as against the average daily volumes of 13.58 lakh shares in the past one month.Rail Vikas Nigam Ltd lost 4...