Singh, who recently joined BJP after snapping four-decade old ties with Congress, alleged that Hooda has "monopolised" things in the Congress's state unit.
"In the last ten years, Hooda has finished Congress in Haryana and taken it backwards," he alleged.
He also alleged that the Hooda government was involved in a massive land scam in Gurgaon.
Singh claimed that BJP would create history by storming to power in Haryana after the upcoming assembly polls.
He claimed that more leaders will desert the Congress's sinking ship to join other parties once the poll dates are announced.
Notably, in the recent times, a number of Congress leaders, a few of them senior leaders from the state, have quit the ruling outfit.
He also accused the Hooda government of regional bias.
Replying to a question, Singh said he had joined BJP "unconditionally", but would abide by the party's decision if asked to contest the forthcoming polls.
