A case was registered by police on Tuesday over the abusive and threatening online posts against Kashmir's first all-girls rock band whose one member has been sent to Bangalore after the group was forced to call it quits.

An official associated with the investigations said police were able to identify at least six Facebook users who had posted hate messages on the page of the three-member rock band with the help of experts from the cyber crime cell.

Although the whereabouts of the girls were kept a secret by the family after the controversy broke out, it has emerged that one of the three girls has gone to Bangalore amid reports she has left the Valley to help her recover from depression.

The other two girls remained in the Valley.

"A case under Section 66 A of the IT Act and Section 506 RPC (Criminal Intimidation) has been registered in police station Rajbagh with regard to the hate messages posted on the Facebook page of the Pragaash band," a Jammu and Kashmir police spokesman said.

He said the investigations are in full swing but refused to give any details.

An official on the condition of anonymity, however, said, "So far half a dozen Facebook users who had posted hate messages have been identified while efforts are on to identify the others."

He said the Facebook page of the band had received a large number of posts -- mostly critical -- and it would take some time to sift through all of them.

"Arrests are likely to be made in the next couple of days," he added.

Pragaash (light), the first all-girls rock band of Kashmir, yesterday decided to call it quits in the wake of a 'fatwa' issued by Grand Mufti Bashiruddin Ahmad terming singing as un-islamic that came close on the heels of the threatening online posts.

The Mufti said he was "happy" the rock music group has been disbanded by the girls.

Breaking the silence, a member of the band said they have given up music as they respect the decree (fatwa) issued by the Grand Mufti.

"We just quit (singing and music) only because of the people of Kashmir, as Mufti sahib said it is un-islamic. We did not know that they are unhappy with our music," one of the three band members told a private TV channel.