With Union Minister H D Kumaraswamy accusing his government of corruption and ministers of extracting commission, Karnataka Chief Minister Siddaramaiah on Sunday challenged the JD(S) leader to prove his allegations with evidence. He said allegations should not be made without documents and proof. "Let him prove it. Ask him to prove that 60 per cent commission is taking place and there is corruption. Let him prove it. Not just making allegations, one has to prove it," Siddaramaiah told reporters here, responding to a question. He said the opposition's job is not only to make the allegations, they should also prove it with evidence and documents. Earlier in the day, speaking to reporters in Mysuru, Kumaraswamy targeted the Siddaramaiah-led government and accused it of corruption and extracting commission, while alleging that ministers themselves are involved in this. "Contractors supporting them (Congress party) are themselves saying that it (commission) has crossed 60 per cent and