The Economic Offences Wing (EOW), probing the case, booked Agarwal and other executives of the builder firm for forgery and criminal breach of trust.
"We have slapped sections 467 (forgery of valuable security) 468 (forgery for purpose of cheating), 471 (using as genuine a forged document) and 409 (criminal breach of trust) of Indian Penal Code," said Deputy Commissioner of Police Deepak Sakore.
The DCP said one of the reasons behind imposing additional charges is that Maple Group had used the logo of 'Pradhan Mantri Awas Yojana' in their advertisement without permission.
He said the Maharashtra Housing and Area Development Authority (MHADA) and PMAY have informed police that the developer did not take any formal permission before releasing the advertisement.
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Maple Group had recently published advertisements promising a 1-BHK flat for only Rs 5 lakh on the outskirts of the city.
Meanwhile, senior NCP leader Ajit Pawar accused the BJP government of delaying the arrest of Agarwal.
"The government is dilly dallying on the issue of arrest of (Maple Group CMD) Sachin Agarwal, accused of cheating common people. Why are police unable to apprehend him?..."Is he Dawood Ibrahim that police are not able to trace him?, he told reporters here.
Police had said around 32,000 people had booked a flat in the low-cost housing project.
The firm later started returning money to depositors after a case was registered against them following uproar.