The party candidates include state BJP chief Swatantra Dev Singh and Deputy Chief Minister Dinesh Sharma.
Addressing BJP workers at the party headquarters in connection with the upcoming UP Legislative Council elections, he said the Opposition parties are damaging the social fabric of the country.
Swatantra Dev Singh also said the enquiry into the Durjanpur incident is being done by police in an impartial manner and there is no pressure from the government or the party.
According to reports, the remarks were made on Friday amid tension at the LAC between India and China, where the two countries have massed troops over recent months.
In his address, Singh compared Samajwadi Party and Bahujan Samaj Party workers with 'terrorists'.
Parties indulging in politics of caste, religion spoiling atmosphere of UP: State BJP chief Swatantra Dev
Singh made the remarks at a chaupal in Jaunpur's Malhani constituency, where bypoll will be held on November 3.
The leader also requested his acquaintances who came in his contact recently to get themselves tested for the infection.
Swatantra Dev Singh also accused Yadav of ignoring his party's workers and promoting his family members.