Uttarakhand police will on Monday file the chargesheet on the murder of a resort receptionist in which a suspended BJP leader’s son has been arrested, and are considering narco-analysis tests to identify the unnamed VIP implicated in the lead-up to the crime, a senior officer has said.

Additional director-general of police V. Murugesan told reporters that the 500-page chargesheet contained 100 witness statements and 30 documents, and invoked the charges of murder, causing evidence to disappear, criminal conspiracy, sexual harassment, and an attempt to force the 19-year-old victim into prostitution.

“We will file it in court on Monday,” the officer said.

Pulkit Arya, son of now-suspended BJP politician Vinod Arya and owner of the resort in Pauri Garhwal, resort manager Saurabh Bhaskar and assistant manager Ankit Gupta have been arrested following statewide protests. They had allegedly thrown the victim into the Chilla canal in Rishikesh on September 18, apparently for refusing to provide sexual services to a VIP guest at the resort.

Murugesan said the police were considering narco-analysis tests on the three accused to identify the VIP. He said Pulkit and Saurabh had agreed to the test while Ankit had sought 10 days to decide. Consent of the accused is mandatory for such tests, which involve people being injected with a drug that apparently nullifies their imagination so that they cannot lie.

A former driver of Vinod — a 25-year-old male — on Wednesday accused the politician of sexual assault.