"Now reports have come out...truth has come out...these people are leaving the village in search of their livelihood," the student leader said, addressing a convention organised by All India Students Federation (AISF).
Accusing the Rashtriya Swayamsevak Sangh, Vishwa Hindu Parishad of "spreading lies for polarising people communally" ahead of UP Assembly polls, Mr Kumar said, "They have not been forced out by people of some particular religion but by political system being followed by people like Prime Minister Narendra Modi."
"Even in Dadri, mutton became beef looking at the upcoming UP Assembly polls," he alleged.
His statement comes two days after top BJP leaders, who were in Allahabad for the two-day national executive meeting, raked up the issue of alleged migration of Hindus from Kairana to attack the Samajwadi Party government in the state, ahead of the Assembly election to be held early next year.
BJP president Amit Shah, in his address to the National Executive on Sunday, had said, "The migration happening in Kairana due to violence is a matter of serious concern. There is an atmosphere of violence. The lack of development and the lack of governance in the largest state of India, that is Uttar Pradesh, is becoming a matter of serious concern."
The party has also set up a committee which will go to Kairana and study the situation.
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