Ruby Chaudhary, the woman who posed as a trainee IAS officer and illegally stayed at the academy in Mussoorie that trains the country's top civil servants, was arrested after she acknowledged her guilt during questioning, police said on Saturday.
A case of cheating, forgery and impersonating a public servant was registered against Chaudhary after her arrest at 11.30 pm on Friday night.
She was also charged with breaching the security of the prestigious Lal Bahadur Shastri National Academy of Administration (LBSNAA), where she had stayed for more than six months using a fake identity card.
"Prime facie, she has been found guilty and we have arrested her after interrogation," said superintendent of police (CB-CID) Shajahan Ansari, who is heading the investigation.
On Saturday afternoon, Chaudhary was presented in the court of Judicial Magistrate Chavi Bansal, who remanded her in judicial custody for a fortnight.
Police also arrested Deb Singh, a security guard at the academy who was suspended immediately after Chaudhary's illegal stay in the institution came to light.
Chaudhary had been under police watch while staying at a hotel in Dehradun for the past two days. Police refused to act on her demand for registering an FIR against the academy's deputy director, Saurabh Jain.
She was arrested after police completed the formality of seeking a court order. A police team came to the hotel and took Chaudhary to Rajpur police station.
Ansari refused to comment when he was asked if police would take action against Jain, whom Chaudhary claimed had facilitated her stay at the academy.
"There is a collective attempt to protect Jain who was Uttarkashi district magistrate in the past and also perhaps held an important position in Dehradun…If he is not wrong why doesn't he have the guts to come out in the open?" Chaudhary had alleged.
"If I am wrong I should be punished but if Jain or the academy administration is wrong they should be punished too," she added.
Accusing authorities of shielding the top official, Choudhary had on Friday threatened to commit suicide if she did not get justice.
D Nariala, the joint director of the academy, rubbished Choudhury's claims about a job being promised to her, saying in a statement that they were baseless and malicious.
He said the woman was staying in the institute without any authorisation and the matter came to the knowledge of officials after an internal inquiry.
Investigations by the academy's security revealed that Chaudhary had stayed in the residential quarters of Deb Singh, the security guard who was suspended, Nariala said.
The woman had alleged Jain gave her a fake ID card in return for money to facilitate her stay at the academy. Chaudhry alleged she given him Rs 5 lakh out of a total of Rs 20 lakh, which she was to pay as a deal for a job.
Jain, in a statement, refuted Choudhury's claim that he had promised her a job.