His statement came hours after Mayawati slammed him over the US diplomatic cables released by WikiLeaks last week that described how the BSP supremo once allegedly dispatched her empty private jet to fetch her favourite sandals from Mumbai.
The cables also claimed that Mayawati had food tasters to sample her meals and a "security entourage to rival a head of state."
In a press statement, Assange said that "Mayawati has betrayed the rational thought. The question is, has she also betrayed the Dalit?".
"There is no question that the documents (leaked US cables) are official papers... from the US embassy. These papers have been proven the world over, including by the aggressive persecution of our people by Washington," he said.
He also asked Mayawati to admit her error and apologise.
"Should she fail to do so, she is welcome to send her private jet to England to collect me, where I have been detained against my will, under house arrest, for the last 272 days. I would be happy to accept asylum, political asylum, in India — a nation I love. In return, I will bring Mayawati a range of the finest British footwear," he added.
(With inputs from PTI)