"Time will tell the truth if the man dreaming to become the prime minister has got any material," he said at an election rally without naming BJP's prime ministerial candidate Narendra Modi.
He said voters should know the intention of "BJP leaders who twist facts".
"Those who make false statements, make misleading campaign and publicity...Dream to become PM will be exposed in the coming elections," he said.
Gehlot also criticised the BJP poll manifesto and claimed that Congress would return to power with full majority in the December 1 Assembly elections.