The Central Bureau of Investigation (CBI) detectives raided the home of sub-inspector Simranjit Kaur in northern Meerut city overnight and seized 300,000 rupees (6,666 dollars).

"Besides this huge sum of money we also found incriminating documents that links Kaur to accused Moninder Singh Pandher," a CBI official said, adding the raid was conducted after she underwent a series of lie-detector tests.

Kaur was among six police officers sacked in the New Delhi satellite town of Noida following the recovery of 40 polythene bags packed with human parts from the drainage at Pandher's bungalow, labelled a "House of Horrors" by the media.

Three other Noida policemen were suspended for neglect and the probe into the country's most macabre serial killing in decades was transferred to the CBI earlier this month.

Detectives speaking on conditions of anonymity said Pandher handed out the hefty bribe to Kaur to hush up an investigation into the November disappearance of a 20-year-old sex worker.

The recovery of Payal's cellular telephone led police to Pandher's home on December 29 and the subsequent discovery of her blood-splattered footwear and clothes.

"Kaur went through polygraph (lie-detector) tests on Monday and again on Tuesday which conclusively proved her close association with Pandher," the officer said.

"Also on a monthly salary of 2,200 rupees, Kaur completely failed to explain the large amount of cash found at her home which makes us believe the money originated from the accused," he added.

Pandher's servant Surinder Koli has also been charged with the crimes, and has reportedly confessed to murder, necrophilia and cannibalism.