Kathmandu, Oct. 13 -- Police have yet to launch a formal investigation into an audio recording allegedly featuring Khagendra Sunar, a lawmaker from the ruling Rastriya Swatantra Party, despite mounting controversy over its contents.

RSP General Secretary Bipin Acharya said in a statement that the allegations against Sunar were serious and sensitive and that he had already instructed the party to initiate an investigation. Hari Chandra Bhattarai, deputy chief of the party's disciplinary commission, also told Kantipur that an inquiry into the 'highly sensitive matter' had begun.

Nepal Police, however, is waiting for a formal complaint before proceeding with an investigation.

Abi Narayan Kafle, the police spokesperson, said no formal comp...