Countering the charge, the BJP said the Congress was worried about the party in the southern state.
Both BJP and Congress also exuded confidence to win the Karnataka polls due later this year.
Karnataka Congress Working President Dinesh Gundu Rao said that BJP was propagating the "agenda of hate" in the southern state as they don't have any substantive issues to raise.
"Karnataka, we are going to win for sure. The ground reality is that. The BJP is getting desperate. That's why you are seeing the hate agenda which they are trying to impose on Karnataka," Rao said at the India Today South Conclave here.
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"The desperation is on the BJP side. Because, they are bereft of issues. They do not know what to do in Karnataka. Because, they are not able to... get us on our work, on our development, performance," he said.
Alleging that the BJP's only card is a hate agenda, the Congress leader said a "radical version" of Hindutva was being played in certain pockets of Karnataka.
"So, the only card which they have is the hate agenda. The limits that they are going to now, is very extreme," he said.
Telangana BJP spokesperson Krishna Saagar Rao said his party would surely win the Karnataka polls.
"We will win Karnataka. That is why Gundu Rao ji is so worried. That is why they say ban the BJP...," he said.
MIM president Asaduddin Owaisi alleged that he was not allowed to hold meetings in Karnataka.
"See the hypocrisy of Congress. Their president (Rahul Gandhi) says that with love we want to defeat our opponents. Allow me to come to Karnataka," he said.
Rao, however, said: "We have no issue in anyone coming to Karnataka as long as they don't indulge in any hate talk...".