Each passing day sees fresh trouble for the UPA. This time it is Railway Minister Pawan Bansal in the dock because of his nephew. After the law minister Ashwani Kumar courted trouble over allegedly changing the CBI's draft report on the coal allocation scam, it's now the railway minister Pawan Kumar Bansal's turn to face the heat. The railway minister's nephew Vijay Singla has been arrested by the Central Bureau of Investigation (CBI) for allegedly accepting a bribe of Rs. 90 lakh from a member of the Railways Board who allegedly wanted a better position.