Police have registered a case against a man who allegedly posed as an RTI activist and extorted Rs 1.35 lakh from a local developer by threatening to disrupt his construction projects and implicate him in false criminal cases, officials said on Wednesday.

The accused has been identified as Tribhuvan Lalbihari Singh, 47. According to police, he allegedly targeted the developer's construction sites in Airoli and Digha from the first week of May 2026.