Union minister Arun Jaitley today slashed skyrocketing fuel prices by Rs. 2.50 a litre and asked the state governments to match it to make a real difference to the consumers. In what was seen as a political challenge to the states ruled by opposition parties, the minister said while he would send a written appeal to the states, the decision would be theirs and the government will not interfere. "This will be a test for all state governments, especially leaders who were only offering lip service earlier," Mr Jaitley pointedly remarked.