KOLKATA: The West Bengal government on Tuesday moved to the Calcutta High Court demanding capital punishment for the accused Sanjay Roy in the RG Kar rape and murder case, against the Sealdah Civil and Criminal Court order giving life imprisonment.

Advocate General Kishore Dutta moved the division bench seeking the death penalty for Sanjay Roy. The matter has been allowed to be filed.

Earlier, West Bengal Chief Minister Mamata Banerjee on Monday expressed dissatisfaction over the court giving life imprisonment to the convict in the RG Kar hospital rape-murder case and said if the case had been with Kolkata Police, they would have ensured a death penalty.

"I learned about the sentencing from the media. We have always demanded capital punishment and we continue to stand by it. However, this is the court's decision and I can't say much about this. For three other cases, Kolkata police ensured capital punishment through thorough investigations concluded within 54-60 days. This was a serious case. Had it been under our purview, we would have ensured the death penalty long back," CM Mamata said while addressing the media at Malda.