A Chief Economic Advisor-led Committee has listed several risk factors, including revenue shortfall and re-emergence of trust deficit between the Centre and the states, in implementing the Goods and Services Tax. A report released by the Finance Ministry said, the revenue shortfall could result in a double whammy for the Centre as it would also affect the fiscal deficit and might delay compensation to the states. It said, the revenue shortfall could be overcome by raising taxes on non-GST products like petroleum, alcohol and tobacco. It also said, a moderately higher fiscal deficit due to a low GST will benefit consumers, especially poorer ones.