Releasing a a "reality check" report, he said the AAP government did not hold even a single meeting for regularisation of unauthorised colonies in its two-year rule.
He said that reply to RTI queries filed by BJP has revealed that the government did not hold any meeting with the Ministry of Home Affairs on the issue of women safety.
"Why should not I call such a person (Kejriwal) bluff-master and lier as he failed to fulfil his promises to the people who gave him 67 seats in Delhi," Tiwari said in a press conference.
"People in slums where I had spent a night were craving for water. The AAP government claims waiving water bills but what is the use when there is no water for people in slums and unauthorised colonies," he said.
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Tiwari also termed Kejriwal the "biggest threat" to the country, referring to reports that the Delhi Chief Minister stayed at the house of a "terrorist" while campaigning in Punjab.
He also accused AAP of deploying 16,000 camerapersons for "spying" on election rallies of opposition parties and charged that Kejriwal was "wasting" money of the people of Delhi for political purpose.
Lekhi said that Kejriwal who talks about prohibition in other states is "issuing new licences" for liquor vends, bars and pubs in his own state.
"The Kejriwal government has given licence to 250 pubs and 399 liquor vends in the national capital according to the RTI reply," she said.
Gupta said the AAP government has failed to act against "tainted" ministers and legislators.