South Goa Principal District and Sessions Court Judge B P Deshpande dismissed the plea filed by activist Aires Rodrigues.
The judge ruled that it is mandatory to take sanction from the state government to register a case against a member of legislative assembly.
Rodrigues, in his petition filed last month in the court, had submitted the purported audio recording between Sardesai and another social activist Kashinath Shetye related to the illegal conversion of open spaces at Verna in the land owned by Goa Industrial Development Corporation (GIDC).
Special Public Prosecutor Saiesh Mahambrey represented police department during the hearing today.