New Delhi: A day after Himachal Pradesh Chief Minister Virbhadra Singh's houses in the hilly state and Delhi were raided by the CBI in a disproportionate assets case, the state BJP on Sunday sought his resignation on moral grounds.

"After an FIR has been registered by the CBI, Virbhadra Singh has no moral right to continue as chief minister. He must resign," Shrikant Sharma, the BJP secretary and incharge of Himachal Pradesh, said here in a statement.

The BJP leader also accused the Congress of benefiting from Virbhadra Singh's alleged corruption.

"Why is Congress leadership defending him? How much commission has Congress received from his corruption," Sharma asked while claiming that BJP's accusations about Virbhadra Singh's corruption have been proven.

"Since long we have been raising the issue of corruption cases against Virbhadra Singh but erstwhile Congress-led UPA government tried to hide it. After an FIR was registered, our allegations have been proved," Sharma said.

The CBI raided the chief minister's houses in a disproportionate assets case against him and his family even as he prepared for his daughter's wedding.

Virbhadra Singh has refuted the allegations, while the Congress called the raids part of "Prime Minister Narendra Modi's hate agenda".

(With inputs from IANS)