"His resignation is neccessary for a fair probe," he added.
Under attack from the Bharatiya Janata Party (BJP) over alleged corruption, the Himachal Pradesh chief minister Monday said the BJP should go to the Lokayukta for a probe against him.
Leader of Opposition inn the Rajya Sabha Arun Jaitely has alleged that the chief minister accepted Rs.1.5 crore and Rs.2.4 crore through cheques in his and his parliamentarian wife Pratibha Singh's name from Venture Energy and Technology Pvt. Ltd., which was executing a power project in the state.