Delhi police today submitted to a city court a supplementary charge sheet in the 2008 cash-for-vote scam case. The public prosecutor told the court that though Delhi police have completed their investigations in some aspects of the case, their overall probe into the scam is not yet complete.

He said the police is still awaiting Lok Sabha Speaker's sanction to prosecute BJP MP Ashok Argal.

The prosecutor said the supplementary charge sheet contains no new names and is in continuation with the investigations carried out earlier. He added the supplementary charge sheet contains bank statements of some of the accused as annexures.

The Delhi Police had, in its first charge sheet, accused Samajwadi Party leader Amar Singh and L K Advani's former aide Sudheendra Kulkarni of conspiring and masterminding the cash-for-vote scam to bribe some MPs ahead of a confidence vote in Lok Sabha in 2008.