The AAP alleged that the "wild" accusations were a desperate bid to mislead the public and divert attention from the crimes committed under the BJP's rule in Unnao and Kathua.
Referring to a video telecast by ABP News, Tiwari claimed that the AAP and the Congress were trying to "break" the society as development was no longer an issue for them and trying to defame the BJP.
Describing the incident, he alleged that a group of four or five people wearing saffron gamchas' and wielding swords had raised provocative slogans in front of a mosque here immediately after a Ram Navami procession passed by it.
He alleged that the person leading the group was an AAP worker and was sent by the ruling party to incite communal tension in the national capital.
"They raised slogans of Jai Shri Ram and made provocative statements outside the mosque which challenged the unity of the country... I'm grateful to the people in the mosque and of that area for not reacting in the face of provocation," he said.
Union minister Prakash Javadekar, who was also present at the press conference, alleged that AAP was trying to vitiate the atmosphere.
Tiwari also read out a letter to establish that the two people from the group worked for the AAP and asked Delhiites to remain alert against such provocations.
The AAP, in a statement, termed the allegations as wild and imaginary.
"This is a failed and desperate bid to mislead the public and divert attention from ghastly crimes committed in BJP rule in Unnao and Kathua," it claimed.
The party said 250 processions were held in the national capital on the occasions of Ram Navmi and Hanuman Jayanti for which permission was given by the Delhi Police.
It said that as the police was under the BJP government at the Centre, they could easily find out which organisations held the processions.
It said that as Javadekar was convinced that the organisations were orchestrating riots in Delhi, he should immediately get them arrested and prosecuted.
It said that he was free to get the matter probed to find out the truth and the party was against any such activity.
Viral Sach findings:
A video showing a group of men dressed in saffron shouting slogans and brandishing swords outside a mosque in Delhi went viral on social media.
Former Delhi water minister and rebel AAP MLA Kapil Mishra had shared the video titled "AAP's conspiracy to get Muslim votes" from his Twitter handle on Friday. He claimed the Delhi ruling AAP conspired to incite violence between Hindus and Muslims for its vote bank.
When ABP News investigated the video, it was found that the people dressed in saffron took part in a procession organised by a group called 'Sanatan Hindu Vahini'. A person, Nand Lal Kanaujia, who participated in the procession claimed he is a worker of AAP. The party, however, has not confirmed Kanaujia's claim.
WATCH THE VIDEO:
(With inputs from PTI)