He said the party's performance was a victory of Prime Minister Narendra Modi's policies.
"Gujarat and Himachal Pradesh results are a lesson to those who forget political courtesy and indulge in unparliamentary language. Those raising question mark on the Prime Minister will now have to accept his leadership," he told reporters in the Vidhan Bhawan complex here.
"We, on behalf of the people of UP congratulate Modiji and Amit Shahji. It's victory of economic reforms. Modi's leadership has established country economically. Those who raised questions on Gujarat model should now look at the results. It's victory of policies of Modiji," he said.
"We will also win other Congress strongholds. By showing 'janeu' (sacred thread), Rahul Gandhi showed casteist, divisive and despicable thinking," he said, adding that change in Congress leadership is a "positive sign" for the BJP.
About UP, he said, "We will win all 80 Lok Sabha seats in 2019 elections in the state.