The victim, Chandravati and her husband Venkateshmurthy on Sunday, May 2 night filed the complaint at the DGP's residence.
The complaint is enough for the former minister to be arrested under the 376 (read with 511) of the IPC, following which a probe will be launched.
The attempt to rape case can lead to Halappa being put behind the bars for a period of up to seven years.
The victim and her husband have also revealed scathing details on the minister. They claim that Halappa, who attempted to rape Chandravati in the wee hours of Nov 27, 2009, had warned the couple against the disclosing the incident to anyone.
Chandravati, mother of two, has also alleged that Halappa had threatened to kidnap their children.
The accused, on the other hand, has rubbished the reports calling them 'baseless and untrue'. He has alleged 'political controversy' behind the charges slapped against him.